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  • Numerical simulation of air flow field in single-sided ...

    As a consequence, it is particularly useful to predict the air flow distribution in a building by natural ventilation and to design the entire building layout in order to utilise the natural cooling resources. There are two popular methods to predict airflow fields; the first is the model experiment, and the second is the numerical simulation.

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  • (PDF) Numerical Simulation of Air Flow and Medical-Aerosol ...

    Numerical Simulation of Air Flow and Medical-Aerosol ... proved that critical engineering-oriented CFD ... studied the effect of head direction and breathing mode on particle behavior within a ...

    Get Price
  • Numerical Simulation of Flow Behavior within a Venturi ...

    The present work details the three-dimensional numerical simulation of single-phase and two-phase flow (air-water) in a venturi scrubber with an inlet and throat diameters of 250 and 122.5 mm, respectively. The dimensions and operating parameters correspond to industrial applications. The mass flow rate conditions were 0.483 kg/s, 0.736 kg/s, 0.861 kg/s, and 0.987 kg/s for ...

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  • Numerical simulation of two-dimensional room air flow with ...

    The air flow and temperature distribution during heating and ventilation in a model room has been studied. The inlets and outlets are on opposite walls and cover the full width of the room making the flow essentially two-dimensional; obstructions within the room are also not considered for simplicity.

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  • Transient numerical simulation of airflow and fibrous ...

    Here a peak flow rate of 20 L/min and the breathing frequency of f = 0.25 HZ were assumed for the unsteady airflow simulation. Using Equation in (1) leads to the equivalent mean flow rate of 12.8 L/min. The time variations of the boundary condition for cyclic breathing and its equivalent mean flow rate are shown in Fig. 2.. Download : Download high-res image (176KB)

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  • Numerical Simulation of the Airflow Over a Military ...

    phase of studying flow phenomena. Lines connecting these points and surfaces oriented by these lines were created having as a target ‘’a water tight’’ geometry. 2.1 Intake. Along with the airframe, the model geometry has an active intake in that the air may flow all the way up to the engine’s face. The geometric features of the intake ...

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  • (PDF) Numerical Simulation of Air-Water Two Phase Flow ...

    Application of numerical methods to assess the hydraulic performance of the screen Coanda-effect is investigated. This research project focused on flow observation and CFD simulation in the zone ...

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  • (PDF) ? Numerical simulation of ventilation air flow in ...

    The basic logic of the simulation model for handling air and diesel movements and the means for modeling air splits and junctions are discussed. The model application to a three-entry coal mine ...

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  • Numerical simulations of flow and pollution dispersion in ...

    Fig. 2 shows the domain of the 2-D experiments, where x is the streamwise and z the vertical coordinate. The street surface is the z = 0 plane.The domain height is 16 m, four times the canyon height (h = 4 m).The building width, b, is 4 m, and the canyon width, w c, differs for different experiments.Three turbulence models (Reynolds stress, k-ɛ and Smagorinsky) have been tested.

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  • Direct numerical simulation of evaporating droplets ...

    A model for the three-dimensional direct numerical simulation of evaporating, deforming droplets in incompressible flow is presented. It is based on the volume-of-fluid method and is therefore capable of capturing very strong deformations. The evaporation rate is computed based on the vapour mass fraction and the PLIC reconstruction of the surface.

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  • Numerical Simulation of Air Flow and Temperature ...

    Numerical Simulation of Air Flow and Temperature Distribution in Volumetric Solar Receiver Consisting of a Porous Medium ... 5.2 Temperature behavior. The first results present the temperature distribution along the direction of flow. The air begins to extract the thermal energy from the structures until it reaches the local equilibrium ...

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  • [PDF] Numerical Simulation of the Air Flow and Thermal ...

    Results of numerical simulations of the air flow including the heat transport and the thermal radiation as well as the thermal comfort of passengers in a train cabin are presented. The computations have been performed by coupling flow simulations conducted with the computational fluid dynamics (CFD) code OpenFOAM with finite-element simulations of the heat transport within the passengers using ...

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  • A numerical simulation of air flow in the human ...

    A numerical simulation of air flow in the human respiratory system for various environmental conditions Alibek Issakhov1,2*, Yeldos Zhandaulet1,2, Aizhan Abylkassymova1,2 and Assylbek Issakhov1,2 Abstract The functions of the nasal cavity are very important for maintaining the internal environment of the lungs since the

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  • Numerical Simulation of Air Flow Arrangement and Energy ...

    In this paper, we study the building air-conditioned room in the small space and establishment the mathematical numerical simulation model which is for the designing and energy saving of the air distribution, We analysis the energy effect on five types of the airflow organization based on simulation software developed by our research team to study the designing and energy saving of the air ...

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  • Numerical simulation of air–soil two-phase flow based on ...

    Soil flow and induced air blasts are of great harm to humanity, and historically they have caused a lot of damage to infrastructure. However, these phenomena cannot be described by traditional analog modeling methods that limit their use in disaster prevention efforts. Computational fluid dynamics (CFD) is an applied technique commonly used in a range of fields including the chemical industry ...

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  • Numerical Simulation of the Airflow Over a Military ...

    phase of studying flow phenomena. Lines connecting these points and surfaces oriented by these lines were created having as a target ‘’a water tight’’ geometry. 2.1 Intake. Along with the airframe, the model geometry has an active intake in that the air may flow all the way up to the engine’s face. The geometric features of the intake ...

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  • NUMERICAL SIMULATION OF SLUG FLOW REGIME FOR AN AIR-WATER ...

    CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Fluid mechanics of air-water slug flows in horizontal circular pipes is investigated using detailed, transient, 3-dimensional Computational Fluid Dynamics (CFD) simulations. The inhomogeneous two-phase or mixture model combined with the interface sharpening (free surface) algorithm, implemented in the commercial CFD ...

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  • Numerical Assessment of Airflow and Inhaled Particles ...

    and space. In order to enable numerical stability a time step of 5 x 10-4 s is utilized. A hypothesis of a total pressure drop of - 15 Pa is considered throughout the simulations of inspiratory states. Airflow velocity and pressure are calculated over the computational domain to allow further assessment of inhaled particles behavior.

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  • Dynamic Simulation of Household Refrigerators: Numerical ...

    The aim of this work is to implementa numerical platform able to simulate the transient behavior of household refrigerators considering all the relevant components/features but also reaching a compromise between the system simulation time and level of detail.the The most significant aspects of the simulation could be summarized as follows.

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  • (PDF) Experimental and Numerical Analysis of Air Flow ...

    heat sink with rectangular parallel fins was utilised. Each fin has a dimension of 71×4 mm, with a. distance of 9 mm separating between a fin and. another. The base of the heat sink itself is ...

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  • NUMERICAL SIMULATION OF THE AIR FLOW FIELD IN THE MELT ...

    NUMERICAL SIMULATION OF THE AIR FLOW FIELD IN THE MELT BLOWING PROCESS WITH THE USE OF AN AUXILIARY NOZZLE. pages 473-482. DOI: 10.1615/HeatTransRes.2013006087. Get access. Yuanling Cheng College of Textile and Clothing Engineering, National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215006, China.

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  • Article: Numerical simulation of air flow in needle-to ...

    Title: Numerical simulation of air flow in needle-to-cylinder electrohydrodynamic device Authors: Rafał Gałek; Joanna Wilk. Addresses: Department of Thermodynamics, Faculty of Mechanical Engineering and Aeronautics, Rzeszów University of Technology, 8 Powstanców Warszawy Ave., 35-959 Rzeszów, Poland ' Department of Thermodynamics, Faculty of Mechanical Engineering and Aeronautics ...

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  • Numerical Simulation and Experimental Verification of Air ...

    CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract—The phenomenon of forced convection with turbulent flow is chaotic, complex and hard to develop analytically. Only key to the problem is experimental correlations and numerical solution. The goal of our project is to validate the Dittus-Boelter equation, a correlation used to find the value of heat transfer ...

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  • [PDF] NUMERICAL SIMULATION OF SLUG FLOW REGIME FOR AN AIR ...

    Fluid mechanics of air-water slug flows in horizontal circular pipes is investigated using detailed, transient, 3-dimensional Computational Fluid Dynamics (CFD) simulations. The inhomogeneous twophase or mixture model combined with the interface sharpening (free surface) algorithm, implemented in the commercial CFD code CFX-5.7, has been used to predict the transition of a segregated air-water ...

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  • Research on Flight Numerical Simulation of Aerodynamic ...

    air flow field numerical simulation of aircraft flight. Foreign gas dynamic flow field research and development prediction software in most of the potential flow solution or the Euler equation to calculate the air flow field, because this approach does not consider the viscosity of air, unable to deal with flow separation, therefore in the ...

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  • Numerical Simulation of a New Cooling System for ...

    2191, Page 1 Numerical Simulation of a New Cooling System for Commercial Aircrafts Karin DIETL1, Jens VASEL2, Gerhard SCHMITZ3* 1Hamburg University of Technology, Institute of Thermo-Fluid Dynamics, Applied Thermodynamics, Hamburg, Germany [email protected]

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  • Developing efficient tools to evaluate indoor environment ...

    of air velocity, temperature and at a later stage pollutants concentration that describe the flow field characteristics and the contaminant level in the test room considered. Detailed measurements of indoor air flow are difficult to accomplish because similar to numerical simulations behavior at the boundaries

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  • Numerical simulation of water spray transport along a ...

    Water spraying is widely being used in many industrial applications because of the benefits it has shown over cooling. This paper presents a numerical investigation to simulate evaporating water spray along a plate of an exchanger. Indeed, we were interested in a horizontal channel whose lower wall is the plate of the exchanger maintained at a heating flow. This plate is exposed to a turbulent ...

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  • Modeling coupled heat transfer and air flow in a ...

    The assessment of building thermal comfort quality in the Mediterranean context necessitates detailed information concerning local air speed and temperature inside the space. We have extended the three-dimensional zonal model ZAER (Zonal AERial model) to enable predictions of air flow pattern and thermal distributions between and within rooms. Numerical simulations from the new program have ...

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  • CFD Simulation of the Filtration Performance of Fibrous ...

    The boundary should be set far away from the porous medium to avoid interference with the flow field. Hosseini and Tafreshi [] performed an air filtration simulation, with the inlet and the outlet of the calculation zone, respectively, at distances of 20 times d f and five times d f upstream and downstream of the filter medium.Babaie et al. [] set the length of the inlet and outlet media to 7 ...

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  • Numerical Simulation of a New Cooling System for ...

    2191, Page 1 Numerical Simulation of a New Cooling System for Commercial Aircrafts Karin DIETL1, Jens VASEL2, Gerhard SCHMITZ3* 1Hamburg University of Technology, Institute of Thermo-Fluid Dynamics, Applied Thermodynamics, Hamburg, Germany [email protected]

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  • Numerical Simulation of Particle Transport and Simulation ...

    Numerical Simulation of Particle Transport and Simulation in a Rhythmically Expanding Sac: Toward Deciphering the Inhaled Particle Journey in the Deep Lung Khaled Talaat and Jinxiang Xi School of Engineering and Technology Central Michigan University Mt Pleasant, MI, 48859 Email: [email protected], [email protected]

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  • Numerical simulations of targeted delivery of magnetic ...

    The flow structures inside an idealized human upper airway were analysed in . The lattice Boltzmann method (LBM) was applied to perform a direct numerical simulation study of the airflow …

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  • A numerical study of the aerosol behavior in intra-acinar ...

    The airflow in G17, G18, and G23 is solved for these inspiration flow rates, assuming a parabolic air velocity profile at the model entrance. All the calculations were conducted as double-precision to more accurately determine the airflow and the particle behavior.

    Get Price
  • Research on Flight Numerical Simulation of Aerodynamic ...

    air flow field numerical simulation of aircraft flight. Foreign gas dynamic flow field research and development prediction software in most of the potential flow solution or the Euler equation to calculate the air flow field, because this approach does not consider the viscosity of air, unable to deal with flow separation, therefore in the ...

    Get Price
  • AIR-WATER TWO-PHASE FLOW EXPERIMENTAL AND NUMERICAL ...

    the upstream tank. Four air injection tubes are oriented with the same direction as the water flow, using 0.5mm diameter holes around the mixer pipe. The water flow rate is kept constant, and the air injecting flow rate is adapted to keep the air void fraction at constant values up to 10% and even more.

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  • Numerical simulation of the flight of a badminton ...

    This study aims at studying the capability of a meshless method, the Smoothed Particle Hydrodynamics (SPH) method, to predict the whole flight of a badminton shuttlecock, including the first stage of its flight where flipping motion induced by the dynamics or the player occurs. As a first step, our study is restricted to 2D configurations, and a 2D shuttlecock model is proposed that has same ...

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  • Aerodynamic evaluation of wing shape and wing orientation ...

    The numerical simulations of the flow over the butterfly wings enable the comparison of the aerodynamic trends observed during wind tunnel testing. In addition, they allow the visualization and determination of different flow …

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  • Simulation of Transition with a Two-Equation Turbulence ...

    Development and Initial Validation of a Two-Equation Transition Sensitive Turbulence Model for CFD Simulations. 14 December 2007. Numerical Model for Wave-Induced Scour below a Submarine Pipeline. Journal of Waterway, Port, Coastal, and Ocean Engineering, Vol. 131, No. 5.

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  • Direct numerical simulation of a turbulent wind over a ...

    Direct numerical simulation of a turbulent wind over a wavy water surface O. A. Druzhinin,1 Y. I. Troitskaya,1,2 and S. S. Zilitinkevich2,3 Received 29 November 2011; revised 3 January 2012; accepted 6 January 2012; published 22 March 2012. [1] Parameterization of the wind-water-waves interaction is a key problem of the air-sea system modeling.

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  • Numerical simulation of intranasal air flow and ...

    A numerical simulation applying the computational fluid dynamics (CFD) solver Fluent 6.1.22 was performed displaying inspiratory intranasal air temperature and airflow patterns. Results Due to resection of the turbinates the airflow pattern is disturbed resulting in a spacious vortex throughout the entire nasal cavity.

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  • Team 5: Numerical Simulations of Air Flow and Heat ...

    Partial differential equations (PDEs) describe a wide range of phenomena, for example fluid flow, heat transfer, and sound propagation, among others. As such, models comprised of sets of PDEs, coupled with suitable boundary and initial conditions, are frequently used to perform computer simulations in an effort to understand the behavior of solutions, as well as being

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  • A numerical simulation of air flow in the human ...

    The numerical model included the area from the front tip of the nose to the posterior end of the nasal concha. As displayed in Fig. 1a, b, the nasopharynx was expanded to fit the experimental setup. The geometry of the human nasal cavity was created by aligning and processing 40 computed tomographic (CT) images of the respiratory tract of a healthy man.

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  • electronic library - Numerical Simulation of the Air Flow ...

    Konstantinov, Mikhail und Lautenschlager, Waldemar und Shishkin, Andrei und Wagner, Claus (2014) Numerical Simulation of the Air Flow and Thermal Comfort in Aircraft Cabins. In: New Results in Numerical and Experimental Fluid Mechanics IX Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 124.

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  • Numerical Simulation of Air Flow inside Acoustic Cyclone ...

    ABSTRACTThis paper presents a novel concept of cyclone separator, where sound waves are used to agglomerate fine particles. Sound waves generated by Hartmann acoustic generator are introduced into the secondary (core) air flow of cyclone separator. Results of numerical simulation of air flows inside conventional and acoustic cyclone separators are presented.

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  • NUMERICAL SIMULATION AND VISUALIZATION OF AIR FLOW IN ...

    Numerical simulation and visualization of air flow in Ranque-Hilsch vortex tube. In: N. Dawood and M. Kassem (Eds.), Proceedings of the 13th International Conference on Construction Applications of Virtual Reality, 30-31 October 2013, London, UK. 638

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  • NUMERICAL SIMULATION OF AN AIR-SUPPORTED STRUCTURE IN THE ...

    In this paper it is proposed to use commercial code ANSYS 15.0 for the numerical simulation of aeroelastic behavior of air-supported structure in the air flow. Results of fully coupled FSI numerical simulations can be used for improvement for design and load-analysis standards addressed to the air-supported structures.

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  • Numerical Simulation of Interfacial Phenomenon of Air ...

    Zhu, G, & Zhu, H. 'Numerical Simulation of Interfacial Phenomenon of Air-Water Adiabatic Intermittent Flow in Helically Coiled Tubes.' Proceedings of the 2016 24th International Conference on Nuclear Engineering.

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  • Numerical Simulation of the Air Flow and Thermal Comfort ...

    Results of a numerical study of the air flow and the thermal comfort of the passengers in an aircraft cabin which includes thermal radiation effects are presented. The computations have been performed by coupling flowsimulations with the Computational Fluid Dynamics (CFD) code OpenFOAM with finite element simulations of the heat transport ...

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  • Real-Time Simulation of Dust Behavior Generated by a Fast ...

    particles, discuss the dynamics of air flow around the vehicle that affect the dust behavior, and analyze the forces acting on a dust particle in order to establish corresponding physically based empirical models. 3.1 Dust Generation There are many factors affecting the generation of dust particles (number

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  • Numerical simulation of air flow field in single-sided ...

    As a consequence, it is particularly useful to predict the air flow distribution in a building by natural ventilation and to design the entire building layout in order to utilise the natural cooling resources. There are two popular methods to predict airflow fields; the first is the model experiment, and the second is the numerical simulation.

    Get Price
  • (PDF) Numerical Simulation of Air Flow and Medical-Aerosol ...

    Numerical Simulation of Air Flow and Medical-Aerosol ... proved that critical engineering-oriented CFD ... studied the effect of head direction and breathing mode on particle behavior within a ...

    Get Price
  • Numerical Simulation of Flow Behavior within a Venturi ...

    The present work details the three-dimensional numerical simulation of single-phase and two-phase flow (air-water) in a venturi scrubber with an inlet and throat diameters of 250 and 122.5 mm, respectively. The dimensions and operating parameters correspond to industrial applications. The mass flow rate conditions were 0.483 kg/s, 0.736 kg/s, 0.861 kg/s, and 0.987 kg/s for ...

    Get Price
  • Numerical simulation of two-dimensional room air flow with ...

    The air flow and temperature distribution during heating and ventilation in a model room has been studied. The inlets and outlets are on opposite walls and cover the full width of the room making the flow essentially two-dimensional; obstructions within the room are also not considered for simplicity.

    Get Price
  • Transient numerical simulation of airflow and fibrous ...

    Here a peak flow rate of 20 L/min and the breathing frequency of f = 0.25 HZ were assumed for the unsteady airflow simulation. Using Equation in (1) leads to the equivalent mean flow rate of 12.8 L/min. The time variations of the boundary condition for cyclic breathing and its equivalent mean flow rate are shown in Fig. 2.. Download : Download high-res image (176KB)

    Get Price
  • Numerical Simulation of the Airflow Over a Military ...

    phase of studying flow phenomena. Lines connecting these points and surfaces oriented by these lines were created having as a target ‘’a water tight’’ geometry. 2.1 Intake. Along with the airframe, the model geometry has an active intake in that the air may flow all the way up to the engine’s face. The geometric features of the intake ...

    Get Price
  • (PDF) Numerical Simulation of Air-Water Two Phase Flow ...

    Application of numerical methods to assess the hydraulic performance of the screen Coanda-effect is investigated. This research project focused on flow observation and CFD simulation in the zone ...

    Get Price
  • (PDF) ? Numerical simulation of ventilation air flow in ...

    The basic logic of the simulation model for handling air and diesel movements and the means for modeling air splits and junctions are discussed. The model application to a three-entry coal mine ...

    Get Price
  • Numerical simulations of flow and pollution dispersion in ...

    Fig. 2 shows the domain of the 2-D experiments, where x is the streamwise and z the vertical coordinate. The street surface is the z = 0 plane.The domain height is 16 m, four times the canyon height (h = 4 m).The building width, b, is 4 m, and the canyon width, w c, differs for different experiments.Three turbulence models (Reynolds stress, k-ɛ and Smagorinsky) have been tested.

    Get Price
  • Direct numerical simulation of evaporating droplets ...

    A model for the three-dimensional direct numerical simulation of evaporating, deforming droplets in incompressible flow is presented. It is based on the volume-of-fluid method and is therefore capable of capturing very strong deformations. The evaporation rate is computed based on the vapour mass fraction and the PLIC reconstruction of the surface.

    Get Price
  • A numerical study of the aerosol behavior in intra-acinar ...

    The airflow in G17, G18, and G23 is solved for these inspiration flow rates, assuming a parabolic air velocity profile at the model entrance. All the calculations were conducted as double-precision to more accurately determine the airflow and the particle behavior.

    Get Price
  • Simulation of Transition with a Two-Equation Turbulence ...

    Development and Initial Validation of a Two-Equation Transition Sensitive Turbulence Model for CFD Simulations. 14 December 2007. Numerical Model for Wave-Induced Scour below a Submarine Pipeline. Journal of Waterway, Port, Coastal, and Ocean Engineering, Vol. 131, No. 5.

    Get Price
  • Numerical study of the turbulent flow past an airfoil with ...

    Numerical simulation and experiments on turbulent air flow around the semi-circular profile at zero angle of attack and moderate Reynolds number Computers & Fluids, Vol. 188 Numerical study of rising bubbles with path instability using conservative level-set and adaptive mesh refinement

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  • DEVELOPMENT OF INDUSTRY ORIENTED CFD CODE FOR ANALYSIS ...

    such as numerical simulations that could be used to provide an engineering solution to the problem. Computational Fluid Dynamics (CFD) codes have been successfully applied during the last decade using the power of Supercomputers. Although significant progress has been made, a benchmark industry oriented CFD code dedicated to face ventilation is

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  • Simulation of Airflow Distribution in Stored Bulk Grain A ...

    tediousness in solving and other end-use oriented limitations. Hence, there is a need for validated numerical models. 2.2. Numerical solutions Numerical models are powerful techniques used to predict and explain the behavior of several physical systems. Quite a few models have been developed to predict the temperature

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  • Direct numerical simulation of drag reduction by spanwise ...

    R. D. Moser and P. Moin, “ Direct numerical simulation of curved turbulent channel flow,” Technical Report No. 85974, NASA, 1997. However, for Re τ = 550, streamwise velocity two-point correlations, R uu (ẑ), do not show a strong change in streaky structures but a faint difference at y + = 10 compared to the no-force case . The ...

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  • Direct numerical simulation of scalar transport in ...

    In this study, the direct numerical simulation (DNS) solver developed by Yang & Shen (Reference Yang and Shen 2011a) is adopted, which uses a boundary-fitted computational grid system that follows the instantaneous wave surface elevation and motions, allowing one to resolve the details of the turbulent flow above and in the vicinity of the ...

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  • Numerical Simulations of the Postsunrise Reorganization of ...

    A convection-permitting numerical model is used to simulate the postsunrise reorganization of a nocturnal mesoscale convective system (MCS) observed over western and central Oklahoma on 13 June 2002 during the International H 2 O (IHOP_2002) Field Experiment. The MCS reorganization consists of a transition from northwest–southeast-oriented convective rainbands near sunrise to a single ...

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  • Implementation and evaluation of air flow and heat ...

    and evaluation of new air flow and heat transfer routines for building simulation tools. Development of simulation tool user-interfaces, post-processors and component database have all been excluded. The simulation routines were implemented in a new building simulation tool BUS++, which was based on discretisation and solution of mass, momentum,

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  • Numerical simulation of the flight of a badminton ...

    This study aims at studying the capability of a meshless method, the Smoothed Particle Hydrodynamics (SPH) method, to predict the whole flight of a badminton shuttlecock, including the first stage of its flight where flipping motion induced by the dynamics or the player occurs. As a first step, our study is restricted to 2D configurations, and a 2D shuttlecock model is proposed that has same ...

    Get Price
  • A numerical study of the aerosol behavior in intra-acinar ...

    The airflow in G17, G18, and G23 is solved for these inspiration flow rates, assuming a parabolic air velocity profile at the model entrance. All the calculations were conducted as double-precision to more accurately determine the airflow and the particle behavior.

    Get Price
  • Simulation of Airflow Distribution in Stored Bulk Grain A ...

    tediousness in solving and other end-use oriented limitations. Hence, there is a need for validated numerical models. 2.2. Numerical solutions Numerical models are powerful techniques used to predict and explain the behavior of several physical systems. Quite a few models have been developed to predict the temperature

    Get Price
  • Aerodynamic evaluation of wing shape and wing orientation ...

    Many insects are well adapted to long-distance migration despite the larger energetic costs of flight for small body sizes. To optimize wing design for next-generation flying micro-robots, we analyse butterfly wing shapes and wing orientations at full scale using numerical simulations …

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  • A Fast Adaptive Multipole Algorithm for Particle ...

    (1995) Numerical simulation of air flow around multiple objects using the discrete vortex method. Journal of Wind Engineering and Industrial Aerodynamics 56 :2-3, 213-234. (1995) Force and moment on a Joukowski profile in the presence of point vortices.

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  • Direct numerical simulation of a turbulent wind over a ...

    [8] We perform direct numerical simulation of a turbulent Couette flow over a wavy water surface. The schematic of the numerical experiment is presented in Figure 1. A Cartesian framework is considered where x axis is oriented along the mean wind flow, z axis is directed vertically upward, and y axis is transversal to the mean flow and par-

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  • Coupling Indoor Airflow, HVAC, Control and Building ...

    simulation programs, a major challenge of coupling FFD and Modelica models is that in Modelica, flow directions in the HVAC system can reverse based on the computed pressure difference. Therefore, an air inlet in FFD may become an outlet if the room pressure is higher than the supply air duct pressure, and vice-versa. Thus, the FFD

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  • Numerical Simulations of the Postsunrise Reorganization of ...

    a. Numerical model. Our simulations use version 3.0.1 of the Advanced Research Weather Research and Forecasting (ARW-WRF) model (Skamarock and Klemp 2008). The Thompson et al. (2008) bulk microphysical parameterization, which predicts the mass of cloud water, cloud ice, rain, snow, and graupel, is used in all simulations.

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  • CFD Simulation Singapore

    CFD or computational fluid dynamics is the study of the Fluid flow of liquids and gases in and around specifically engineered objects under study. It also involves the numerical modeling and simulation …

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  • Fluid-Structure Interaction simulation of parachute ...

    parachutes and airflow with the required precision and current techniques (ENSICA had had to restrict to a quarter model with symmetry conditions) ; the work was then oriented to prototype or specify new simulation features that would eventually lead to the full scale simulation of a parachute or event a cluster of parachutes.

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