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The indoor airflow simulation was carried out by using the CFD software. 3 states of interior doors were set, and 60 regions were arrayed in bedroom to observe the variation of airflows.
Model Following the experimental study, a three-dimensional CFD simulation was carried out.
The CFD simulation was performed by commercial CFD software, with a LVEL turbulence model.
Fig.1 Plane of residence Fig.2 Contour of ambient flow pattern Simulation results 3D simulation with turbulence model was carried out to investigate the real operating of the natural ventilation system.
Therefore, 60 regions’ data are extracted after simulation, thus having a further analysis of data.

CFD simulation of a fluidized bed reactor was also conducted by Rong et al. [8] focusing on the chemical kinetic aspects and taking into account the intra-particle heat and mass transfers, poly-disperse particle distributions, and multiphase fluid dynamics.
The Syamlal–O’Brien drag expression was used in these simulations.
Values of parameters used in the simulations and experiments.
[4] Grace, J.R., Taghipour, F., Verification and validation of CFD models and dynamic similarity for fluidized beds.
R.O., CFD Simulation of Polydisperse Fluidized-Bed Polymerization Reactors, Department of Chemical Engineering, Iowa State University, 2114 Sweeney Hall, Ames, IA 50010-2230, USA, Preprint submitted to Elsevier Science, August 2003

The inner flow field and performance characteristics had been studied based on CFD simulations.
To prove the accuracy of the numerical method, the pump was tested and compared with the numerical simulation.
Numerical simulation of the cavitating flow was performed by using a homogenous flow model.
The results of numerical simulations using CFD are compared with experiments.
Jafarzadeh: The flow simulation of a low-specific-speed high-speed centrifual pump [J].

Simulation of 3-D Unsteady Flows in a Tubular Hydro-Turbine on DES Zhenyu OUYANG 1, a, Lixiang ZHANG 2, b 1,2 Faculty of Civil Engineering, Kunming University of Science and Technology, Kunming, 650500,China a15912402706@163.com, bzlxzcc@126.com Keywords: Tubular Hydro-Turbine; computational fluid dynamics (CFD); 3D unsteady turbulences; detached eddy simulation(DES); numerical simulation Abstract.
The vortex model is picked with detached eddy simulation for the unsteady turbulent field calculations, in order to obtain the transient characteristics of the turbine turbulent flow.
Due to the higher efficiency of the method of calculation of RANS, it is widely used in practical engineering , but its drawback is that the rotation effect on the turbulent flow is difficult to reflect; Large Eddy Simulation CFD method is currently a hot research and application[3-4], and for the rotation of the turbulence it has better adaptability but also occupies a larger computing resources; DES method is integrated with the advantages of both, and with a better application[5].
Nanoparticle Transportation and Brownian Diffusion in Planar Jet Flow via Large Eddy Simulation [J].
Francis turbine fine three- dimensional unsteady flow separation eddy simulation model [J].

Often this is done virtually by applying simulations.
CAD model for CFD analysis.
In order to study the effects of the building’s facade redesign on its wind environment the state-of-the-art tool which allows combining quick building modeling with advanced computational fluid dynamic (CFD) simulation has been employed.
Applied CFD interface has been designed to run the simulations with simplified settings where geometry and boundary conditions are upper-set.
Grid independence analysis has been fulfilled by comparison of the CFD simulation results of two different grid spacing values – 2 (for the rest of the calculations) and 3 meters.

The range of Re for CFD simulations was 2738≦Re≦10269 and that for lift and drag study was 70512≦Re≦101319.
Results and Discussion Validation of NACA 643-218 airfoil standard CFD model.
The CFD results are compared with the published data from Abbot et al. [10] in order to validate the current work.
As can be seen in Fig. 2, a good agreement between the CFD results and published data is achieved.
CD were obtained from simulations.

In this paper, CFD technology is used to simulate visually the porting process，which causes the flow pulsation in water hydraulic axial piston pump.
In CFD calculation method, the relative motion between fluid is mainly achieved through mobile grid technology.
CFD calculation results In this paper, through the adoption of mobile grid on three kinds of speed and turbulence model, we use visualization simulation analysis for the flow state in the hydraulic pump of nine kinds of working conditions of the combination of three kinds of load pressure , the analytical results is shown in Fig.3 and Fig.4.
Journal of mechanical engineering, 2012 (22) : 13, 162-167 [5] Yu Lijuan, wang, Zhang Xuecheng to plunger pump flow pulsation active control method and simulation study [J].
Journal of xi 'an jiaotong university, 2013,47 (11) : 43-47 [6] Wang Xingkun, the east, hu ShangJianDong, double-acting vane pump flow field numerical simulation and characteristics analysis [J].

Keywords:homogenizing valve; homogenization; numerical simulation; computational fluid dynamics Abstract.
Numerical investigations on flow and pressure fields within a kind of new type homogenizing valve have been conducted using computational fluid dynamics (CFD) software.
The study indicates that the new type homogenizing valve can be modeled by CFD and detailed information on high speed flow is available.
To obtain estimates of such data, numerical simulations are required.
Visualization of the flow patterns in a high-pressure homogenising valve using a CFD package.

CFD Simulation Research of Small Space with Large Temperature Difference Yao Zhang1, a, Xiaoya Liu2,b 1Scool of Computer and Communication Engineering Northeastern University at Qinhuangdao, Qinhuangdao 066004, Hebei, China 2University of Iowa, Iowa City, IA, U.S.A a zhangyao@mail.neuq.edu.cn;bxiaoya-liu@uiowa.edu Keywords: FLUENT; turbulent flow in high-temperature environment; image deterioration; optimal design.
According to the simulation result of low-temperature protective gas flow rate (figure 3), on the stage of protective gas jet through nozzle onto glass plate surface, the section of flow is small, the flow rate is high, and the direction of the flow basically remains the same.
[5] NUEMEISLAND M, DIXON A G, CFD study of fluid flow and wall heat transfer in a fixed bed of spheres [J].
Tungjitkusolmun, and C.Pintavirooj, "Nasal airflow simulation in human using a computational fluid dynamics (cfd)," presented at the 2nd Biomedical Engineering International Conference (BMEiCON2009), 2009
FLUENT- The case and application for Journal of Fluid’s Engineering simulation calculation [M].Beijing: Beijing institute of technology press, 2010.

In recent years, with the development of the technology of CFD (computational fluid dynamics) and the operational capability of computer, the technology of numerical simulation has made great progress, which has provided feasible methods for three-dimensional flow computation of the full flow conduit.
(2) CFD numerical simulation method can be used to verify the spatial frame design rationality of the concrete volute flow conduit.
Numerical simulation of internal flow of centrifugal pump [J].
CFD simulation for two-phase flow of sediment water in volute [J].
CFD analysis of large spiral case [J].