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Take front guide vane as an example, adopting the NUMECA for numerical simulation, the result is as similar as the experiment’s.
Since different methods of simplification and mesh, CFD results have some differences [4].
The result of numerical simulation is shown as fig.9—fig.12.
The numerical simulation result is inosculated with the experiment.
A Simple Engine Cooling System Simulation Model.SAE International.

Through the simulation result we can learn that adaptive control is batter than the PID control.
The simulation model is shown in Figure2.
The simulation results is shown in the figure 3a) and 3b).
The simulation result is relatively ideal, when sinusoidal signal and step signal is input.
The CFD analysis of main valve flow field for double-nozzle flapper servo valve[J].

For example, in today’s automotive industry, state-of-the-art software tools are used with simulation techniques such as Finite Element Methods (FEM), Computational Fluid Dynamics (CFD), Multibody Simulation (MBS), Crash Simulations and Topology Optimization techniques, all of which reduce the overall development time and improve the accuracy and safety.
Alongside this, CFD simulations are also used to compute different wind loads on the structure.
Britter, CFD simulations of a tunnel fire—Part I, Fire Safety Journal.26.1 (1996) 35-62
Britter, CFD simulations of a tunnel fire—Part II, Fire Safety Journal. 26.1 (1996) 63-90
Sargent, Verification and validation of simulation models, in Simulation Conference, IEEE, 2007, pp. 124-137.

In this paper, numerical simulation of fluid flow in Forward Facing Step (FFS) configuration was performed to investigate velocity profile after the step.
The velocity profile analysis was conducted Computational Fluid Dynamics (CFD) software.
Methodology Intially, the grid independence test was performed before the simulation process [7].
Reynolds(Re) number employed for this simulation was 100 whilethe step heights, hused were 1µm and 3µm.
Diyana and Tijjani Adam,“Numerical Simulation of Microfluidic Devices,” IEEE-ICSE2012 Proc., 2012 [4] XiangdongXue, Mayur K.

(1) Fig. 1 View of experiment place Fig. 2 Maximum stabilized height of wave for 150 mm fluid filling Fig. 3 The control screen of PC 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Amplitudes: Fig. 4 Maximum heights of wave in [cm] Numerical solution, results, discussion The experiment was used as base for numerical simulation.
Comparing of shapes of free surface of fluid and maximum heights of wave from numerical simulation and numerical simulation are seen in Fig. 5 and Fig. 6.
The numerical simulation allows clarification of the reference phenomenon, from which follows knowledge of forces, pressures acting onto walls and the bottom of containers during an earthquake, displacements, velocity, etc.
The numerical simulation shows oscillating of pressure by relative value 120 Pa.
CFD simulations of the effect of wind on the spontaneous heating of coal stockpiles.

Numerical Simulation Analysis of Composite Air Purifying Device Jianlong Liua, Haiping Zhangb, Hanqing Wangc, Yuhui Chud College of Civil Engineering, Hunan University of Technology, Zhuzhou, 412007, China aljlphd@sina.com, bzhanghaiping27@126.com, chqwang2011@126.com, dchuyh126@126.com Keywords: Composite air purification device, Velocity field, Pressure drop, Numerical simulation.
For further studies on performance of the composite purification device, the device has been numerically simulated, through CFD simulation technology, by employing gas phase turbulence model, porous medium model and stochastic particle trajectory model.
Numerical simulation Calculation and results analysis The rotational speed of centrifugal fan affected flow velocity of gas.
Because of the effective filter net is a porous screen structure, belong to porous media, so porous jump is chosen to calculate. 3.5 The grid independence and Confirmation of simulation results Figure 3 shows simulation results comparison of mass concentration of particle in different grid numbers.
Numerical Simulation of Vortex Air Curtain Suction Dust Control System and Its Applications[J].

To investigate the water flowing law in the bifurcation, Li ling analyzed the water flow in the Y-pipe and found the simulation results having good agreement with the experimental results [4].
Rong Guiwen made simulation of the bifurcation to research the hydraulic characteristics of the flow, and the results also coincided well with the measured values [5].
The numerical simulation method was widely used in the research of the bifurcated pipe.
This study will optimize hydraulic shape of the bifurcated pipe by numerical simulation.
Wang: The Computational Fluid Dynamics Analysis- simulation and Application of CFD (Tsinghua University Press, Beijing), p.7-122, in Chinese.

In this paper authors extended their studies using CFD for the geometrical optimization of dump diffusers with different aerodynamic shape flame tubes for modern aircraft engines.
Numerical Studies In this study numerical simulations have been carried out with the help of a well established two-dimensional Shear Stress Transport (SST) K-ω turbulence model.
We have conjectured that the judicious optimization of diffusers is needed, within the given envelope of the modern aircraft engines, with respect to the aerodynamics constraints for controlling the pressure recovery and the losses, which can however be accomplished through the three-dimensional CFD techniques lucratively.
We further concluded that using the CFD tools more flexible and profitable design options can be generated for the dump diffusers for the modern aircraft combustors.
[15] V.R.Sanal Kumar, V.R et al., “Internal Flow Simulation of Dump Diffusers for Modern Aircraft Engines,” 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Colorado Convention Center, Denver, CO, USA, 2 - 5 Aug (2009)

Computer Aided Design of Coat-Hanger Die in Polymer Film Processing Kai Meng1,a, Xinhou Wang2,b and Qingguan Chen1,c 1College of Textile and Clothing Engineering, Soochow University, Suzhou 215006, China 2College of Textiles, Donghua University, Shanghai 201620, China amk2009@suda.edu.cn, bxhwang@dhu.edu.cn, cqgchen@suda.edu.cn Keywords: computer aided design; film processing; simulation; residence time distribution Abstract.
With the aid of computer simulations, coat-hanger die was designed for more uniform residence time distribution.
In this paper, the velocity field and residence time distribution in coat hanger die were obtained by the method of three dimensional computer simulations.
Computer Simulations Governing Equations.
By discretizing the governing equations according to Galerkin method, we obtained the finite element equations, which were solved by the picard iterative method based on a CFD software.

A simulation parameter with dimension is multiplied by to give the physical quantities.
The plot shows that a linear relationship between the pressure difference and the mean curvature is consistent with the assumption that the assumed equations of state would lead to a fluid with properties compatible with those used in standard CFD simulations.
obtained through along the center line of a bubble. , through simulation
The points from the simulations fit the theory.
A consistent relationship between the simulation parameter and interfacial tension is determined.