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CFD is a handy tool capable of reasonable predicting of air-flows.
If the shape of building isn’t involved any standards a wind tunnel experiment would be required and here the CFD simulations can provide alternative solution.
There are three turbulent flow simulation methods RANS (Reynolds Averaged Navier-Stokes Simulations), SRS (Scale Resolving Simulations) and DNS (Direct Numerical Simulation) and several commercial and non-commercials software packages offering CFD simulations.
Wilcox, Turbulence Modeling for CFD, third ed., La Canada CA: DCW Industries, Inc., 2006
Menter, Best Practice: Scale-Resolving Simulations in ANSYS CFD, Version 1.0, 2012.

Furthermore, a computational fluid dynamics (CFD) simulation will be implemented to predict the mass flow rate of the prototype fuel injector.
Computational Fluid Dynamics Simulation Modeling of the CNG Conduit.
FLUENT Simulation Results.
The purpose of the CFD simulation was to determine the mass flow rate of CNG at the pressure outlet of the fuel injector.
Table 2: Assumptions for CFD analysis.

Non-Newtonian Computational Fluid Dynamics (CFD) Modelling on Left Coronary Artery with Multiple Blockages K.M.
This paper provides an analytical study on the variation of static pressure with multiple blockages in the artery implementing the conventional simulation software.
Introduction The objective of this paper is to analyse the various parameters indispensable to the proper functioning of the heart using CFD analysis.
Ganesh Kamath, “FSI Simulation of Common Carotid under Normal and High Blood Pressures”.2012 [6] Barbara M.
Johnston, Stuart Corney, David Kilpatrick, “Non-Newtonian blood flow in human right coronary arteries: Transient simulations”.

Study on energy saving model of air condition for subway station ZHANG Lin-xin1,a, LI Gui-qin2,b, Mitrouchev Peter3,c,GUO Lei4,d 1,2,4Shanghai Key Laboratory of IntelligentManufacturing and Robotics, Shanghai University, Shanghai 200072, China 3University Grenoble Alpes, G-SCOP, F-38000, Grenoble, France azlxin163@163.com,bleeching@staff.shu.edu.cn,cpeter.mitrouchev@g-scop.inpg.fr, d422414261@qq.com Key words: numerical simulation; orthogonal experimental method; multiple linear regression; energy saving strategies Abstract:In order to analyze air conditioner energy conservation of subway station quantitatively,three-dimensional numerical simulations study is conductedby using CFD theory for air distribution of subway platform,and the flow field and temperature field of the platform under different environment conditions are obtained.The orthogonal experiment method is applied to the numerical simulation analysis for human comfort under different parameters.
Theresearch of three-dimensional numerical simulation on the airflow organization of the platform based on CFD theory is conducted in this paper.The orthogonal experiment method is chosen to select portion of the data for test,greatly reducing the test time; The function relationship between human comfort and the boundary conditions ofthe platformis foundby the use of multiple linear regression fitting method, and the results are compared with the actual detection, providing a theoretical basis for the energy saving strategyproposed.
The test results and the simulation results are in good agreement, indicating that the CFD simulation can accurately reflect the actual situation, has a good applicability.
Test times TemperatureK） Velocity（m/s） Test times (a)temperaturecomparison (b)velocitycomparison Fig.4 Comparison between measurement results and simulation results Conclusion (1)The simulation results show that the temperature distribution is relatively uniform, wind speed is higher on the inlet area, with an obvious wind feeling, other areas have lower wind speed; (2)The field test shows that, the error between the calculation results of actual tests and simulation results is less than 5%,the CFD model can accurately reflect the actual situation, has a good applicability.
(Natural Science Edition),2009:8 [5] Wang Jianyu,RenQingchang.Model Predictive Control and Case Simulation for VAV System[J].Journal of System Simulation,2008,20(16)

This work objectified to apply Computational Fluid Dynamics (CFD) on Bradley Hydrocyclone and compare the results from this technique to empirical models.
This work objectified to apply Computational Fluid Dynamics (CFD) on Bradley Hydrocyclone and compare the main results to Massarani's methodology [3].
Volume Fraction of Water (298.15 K) in the Bradley Hydrocyclone A value of 44% to underflow-to-throughput ratio was obtained for the CFD simulation while for the Massarani's Methodology the expected value was approximately 49%.
This result shows that this variable can be estimated successfully by CFD techniques.
Reduced Grade Efficiency (G') and Grade Efficiency (G) by Massarani's Methodology and CFD techniques.

In this paper, the vehicle driving characteristics are investigated under different Force level of gust wind based on the CFD theory.
Some simulations were done based on CFD software and the force inspired by gust wind looks on as the dynamic boundary conditions.
A simplified vehicle model is adopted in the simulation.
The simulation is investigated by using finite element commercial code, Fluent.
CFD study of Changan automobile aerodynamics performance[J].

Introduction The past 50 years have seen a revolution in the entire engineering design process as computational simulation has come to play an increasingly dominant part.
CFD simulations of wing shape have been reported [5, 6] in china.
Our numerical simulation model as followed in the figure 4.
The CFD is most important from this aspect, some countries make great effort has led to major advances.
Coakley.1987.Numerical Simulation of Viscous Transonic Airfoil Flows.

Investigation of Refractory Corrosion of a Gas-stirred Steel Ladle by Simulation Sandra VOLLMANNa, Harald HARMUTHb University of Leoben, Chair of Ceramics, Peter-Tunner-Strasse 5, 8720 Leoben, Austria asandra.vollmann@unileoben.ac.at, bharald.harmuth@unileoben.ac.at Keywords: mass transfer coefficient, corrosion, refractory, CFD Abstract.
Suitable values of Γ, П, Re and Sc are given by the input data for the simulations.
From the mass transfer coefficient resultant from the simulation Sherwood number was calculated.
Fig. 4 – Simulation model Detailed model settings are outlined elsewhere [6].
Harmuth: Investigation of slag corrosion by CFD calculations, 3rd International Conference on Simulation and Modelling of Metallurgical Processes in Steelmaking SteelSim 2009, Leoben, Austria (2009)

CFD simulations solve the Navier-Stokes equations, which account for all fluid mechanical effects.
By using the CFD method, a lot of intricate questions could be well answered.
In Section III, we present materials and methods for CFD research.
Simulations were carried out for 6000 time steps to simulate swimming for twenty tailbeat periods.
Adding turbulence to the three-dimensional simulation would provide the most accurate and realistic numerical simulation of mechanical fin motion.

The Analysis of Aerodynamic Load for High Speed Centrifugal Compressor Blade Zhu Guihua1,a, Qiu Tuanhui1,b and Xie Min2,c 1College of Mechanical and Electrical Engineering,Central South University,Changsha,P.R.china 2Valin Steel,Xiangtan, P.R.china azhuguihuaok@163.com,bqiutuanhui@163.com,cxm54289@sina.com Keywords: Centrifugal Compressor; Blade; Aerodynamic Load; CFD; flow rate Abstract: With the ANSYS Workbench software,the 3D fluid model of the impeller for the centrifugal compressor is set up,whose design flow is 3.2kg/s,rotating speed is 32473r/min,pressure ratio is 3.8,and then with the method of CFD,the k-ε two equations model is selected as the turbulence model,in the condition of design speed,the fluid region of the impeller is simulated under eight different flow rate,the aerodynamic load of the impeller blade and its distribution is acquired under different flow rate,the results showed that the location of the largest aerodynamic load is in the blade that near the outlet
method,then the aerodynamic load is studied. 1 Numerical simulation 1.1 Turbulence model The internal flow of centrifugal compressor is mainly affected by the pressure difference between the inside and outside wall, the centrifugal force of rotation, the curvature of the flow channel; it is a complex three-dimensional flow[5].
to simplify the model,A gap between the vane and the volute value is set to 0 for simulation.The mesh quality directly affect the stability of the numerical simulation of the process,convergence,speed and accuracy.Grid type selected as unstructured grid,Total 123952 nodes and 401204 units,as shown in Fig 2.
Fig 1 The impeller Fig 2 The fluid grid 1.3 Boundary condition Select the boundary conditions of the inlet total pressure and mass flow,the reference pressure is 1 atm,the total temperature and total pressure is given in the importing location,the mass flow is given in the experot location;set periodic boundary condition in the circumferential boundary of the impeller’s upstream and downstream extended aero.Set impermeable,no-slip and adiabatic wall boundary conditions for the solid wall in order to make the mass flux,momentum flux and the energy flux is zero,which is through the grid surface coincides with the solid boundary.The rotation speed is set to be 32473r/min, a temperature of 25℃ air was selected as the fluid medium,the high-level solving mode is selected as the solving format.The calculation convergence criterion is that RMS residual error is less than 1×10-5. 2 The CFD Simulation results and analysis 2.1 Relationship between the aerodynamic loads and
[8] Xie Longhan, Zhao Xinyu,Zhang Jiongming, ANSYS CFX Fluid analysis and simulation, beijing, Publishing House of Electronics Industry. 2012.