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The simulation was carried out at inlet oxygen fraction of 8% and a preheated air temperature of 1273 K for natural gas.
The commercial CFD code FLUENT6.3 was used to carry out the calculation.

Gases flowed from up to down or from down to up via deflectors which was guided by numerical simulation results, respectively.
In order to investigate the effects of deflector on velocity distribution and standard deviation, a CFD model of the new wet ESP was developed.
The CFD analysis provided insights into the internal aerodynamics.

Numerical simulation of characteristics of cross-flow heat transfer in pulsating flow LI Guoneng College of light industry, Zhejiang University of science & technology, Hangzhou, China E-mail: gnlene@163.com Keywords: heat transfer; pulsating flow; computational flow dynamics.
The resolution of computational grid is about 320,000 with emphasis near the wall. 80 mm 76 mm 1000 mm water inlet water inlet pulsating air inlet x y Fig. 1 Sketch map of the structure of cross-flow heat exchange pipe All simulations were carried out based on the CFD code FLUENT 6.3, which solves the conservation equations of mass, momentum and energy based on the finite difference method.

A spectral element method for the numerical simulation of axisymmetric flow in Czochralski crystal growth Zhouhua Qiu1, a, Zhong Zeng1, 2, b, Huan Mei1, Liping Yao, Qiuming Liu 1 Department of Engineering Mechanics, College of Resources and Environmental Science, Chongqing University, Chongqing 400044, PR China 2 State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China aqiuzhouhua@cqu.edu.cn, bzzeng@cqu.edu.cn Keywords: spectral element method; Czochralski growth; axisymmetric flow; Gauss-Radau Abstract.
The simulation of Wheeler’s problem is chosen as a test case to validate the new method and four cases are considered, which are defined as follows A: ReX=100, ReC=0, Gr=0.
Sherwin, Spectral/hp Element Methods for CFD, Oxford University Press, London, 1999

At present, the method of getting hydrodynamic coefficients mainly contain the following 4 methods: estimating with theories and experience; simulating with fluid dynamic software(CFD) ; testing with underwater vehicle model and system identification of real navigation data.
Transfer Function and System Calibration According to "Study of Standard Motion Equation Used for underwater vehicle Simulation", which was published by Taylor Naval Ships Research and Development Center in 1967, we could get space motion equations.
What's more, we did a simulation whose result show it's a stable system.
[3] Li Guang-lei, Zhou Yong-yu, Chen Yong-bing, Han Bing, Zhou Gang, in: Simplification and Simulation of a underwater vehicle's Motion Model for Control, edited by Ship and Ocean Engineering, voI.37 No.6(2008)
[5] Zhang Lixun, in: Simulation and Design of Electromechanical Systems(2006).

Modeling setting 2.1 Meshing According the simulation, it has to reduce the effect of regional boundary to the simulation results.
Generally, increasing the computational domain can increase the accuracy of the simulation, but larger simulation area leads to more time-consuming calculation.
Conclusion This paper takes simulation buildings as the research object and NO, CO and H2 of automobile exhaust as the main pollutants, and using numerical simulation to calculate the buildings’ wind field in different direction and pollutant diffusion.
(4)The simulation results of different wind direction shows that the ventilation effect of the community is good when the crossing angle of wind direction and the inflow surface is 45 degrees, and the diffusion effect is better too.
Zhang, Modeling near-road air quality using a computational fluid dynamics model, CFD-VIT-RIT.

Nowadays, flow simulation tools are substituting the very expensive trial-and-error procedure [[] H.
All of these issues can be addressed to expensive trial-and-error loops or to numerical filling simulations.
Liu, Isothermal flow simulation of liquid composite molding, Comp.
Similarly, also multi-purpose CFD packages such as ANSYS FLUENT [[] L.A.
Zaho, Simulation of the Filling Process during the Resin Transfer Molding.

The third one is simulation results and discussion.
Simulation and Discussions In this section we use ESI-CFD+ software package for simulation (Dauderstadt, et al. 1996, 2008).

Fig.5 Transient thermal response of the inner chamber after continuous shootings ICEM CFD is used to complete the structured hexahedral mesh division for several computational domains of interlayer cooling barrel coupled heat transfer model.
Transient thermal response of the interlayer water cooling of the naval gun barrel Numerical simulations indicate that, compared with natural air cooling, the transient thermal response of gun barrel under the interlayer water cooling has gained control.
Numerical simulations show that, reducing the radial distance between the naval gun barrel inner chamber surface and interlayer cooling channel, can further enhance heat transfer and reduce the peak temperature of transient thermal response.
Numerical simulations show that, reducing the equivalent diameter of interlayer cooling channel and increasing the number of channels can increase the heat transfer area in limited way, thus enhance heat transfer somewhat and improve the cooling performance.

Keywords: Solar thermal concentrators; Thermal performance enhancement; Internal longitudinal fins; Al2O3 Nanoparticles; CFD simulations; Ray Tracing.
It is also the most commonly used model in the simulations of modified PTC receiver designs, as indicated by the recent review by Sharma and Jilte [53].
CFD model development The numerical model was built up by using ANSYS Design Modeller®.
Tao, A MCRT and FVM coupled simulation method for energy conversion process in parabolic trough solar collector, Renew.
Ranjbar, Thermal performance analysis of solar parabolic trough collector using nanofluid as working fluid: A CFD modelling study, J.