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Ye et al. [3, 4] have simulated the spray painting process based on CFD (computational fluid dynamics) software Fluent with 5-7 hours on a PC (3GHz CPU), with numerical and experimental results in good agreement.
However, their simulation is hard to be applied to complex surface due to the turbulent flow, multiphase flow, temperature, boundary condition etc.
Ye: The simulation of the electrostatic spray painting process with high-speed rotary bell atomizers.
Ye: The simulation of electrostatic spray painting process with high-speed rotary bell atomizers.

With these questions in mind, firstly, aimed at solid particles depositing, the solid dispersion of the slurry under the conditions without agitation, has been investigated by computer fluid dynamics (CFD) method in our recent work, and the simulation results showed that without agitation the solid content would not concentrate to tank bottom completely with the normal work flow [8].
Fig. 2 Depth dependence of total average value of solid concentration That is to see, under the condition of reduced or slight agitation, the distributions of the solid phase were uniform relatively in the tank except for the zone near the tank surface, which is consistent with the previous results of computational simulation [8].
That is consistent with the previous results of computational simulation.

The physical model of numerical simulation used in this study was based on a uranium-bearing mountain in China.
In this paper, CFD simulations were conducted with the code Fluent.
For the premise simulation, detailed atmosphere wind profile, turbulence structure and surface roughness would be investigated in the future study.

Flow Field Numerical Simulation of Straight Line Conjugate Internal Meshing Gear Pump Jinjin Guo a, Lichao Liu b , Pengwei Chenc, Qiaolan zhao d Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems, Tianjin University of Technology, Tianjin 300384, China aguojinjin97@163.com,bllc_lxl@163.com,cchenpw8612@163.com, djx_zql@163.com, Keywords: Linear conjugated, FLUENT, Internal gear, Dynamic mesh Abstract.
The model is saved as iges format then imported into the professional CAE pre-processing software ICEM CFD .Then we mesh the finite element model as Figure 2.
Fig.5 Pressure contours Results and Analysis of simulation.

Numerical Simulation Study of Impinging Jet Impact Fin Surface on Heat Transfer Characteristics Zhou Liming1, a, Zhu Lei 2,b, Zhao Jingquan 3,c, Zheng Meng4,d 1No.37, Xueyuan Road, Haidian District, Beihang University, Beijing 100191, China 2No.37, Xueyuan Road, Haidian District, Beihang University, Beijing 100191, China 3No.37, Xueyuan Road, Haidian District, Beihang University, Beijing 100191, China 4No.37, Xueyuan Road, Haidian District, Beihang University, Beijing 100191, China azlm0055@126.com, bzhulei@buaa.edu.cn , czhaojingquan@buaa.edu.cn, d81488916343@qq.com Keywords: Jet impingement; Heat transfer coefficient; Numerical calculation Abstract.
Three-dimensional numerical simulation was implemented to analyze the heat transfer characteristics for jet impingement impact fin surface. 60 calculation cases were simulated to investigate the effects of different fin surfaces on heat transfer characteristics, and 12 jet array impingement cases were calculated for comparison.
In this paper, computational fluid dynamics (CFD) is applied to analyze the heat transfer characteristics of fin surfaces indifferent ribs, shapes and arrangements.
For the complexity of impinging jet flow characteristics in the near wall region, the common wall function cannot guarantee the simulation precision, so an enhanced wall treatment is applied in this paper.
Numerical Simulation of jet array impingement cooling on flow and heat transfer characteristics[J]. 2005,(23) [5] Intel Pentium 4 Processor on 90nm Process Datasheet[J].

In accordance with assuming the numerical simulation boundary condition, spatial temperature field distribution in the target range intermediate level has calculated.
Through the numerical simulation, some results have been obtained.
Finally, the comparison between simulation results and experimental results has been processed.
FLUENT- Simulation examples and application for Fluid Engineering[M] (In Chinese).
Computational Fluid Dynamics Analysis——Principle and Application of CFD software[M] (In Chinese).

To clarify the principles that narrow channel effects the gas deflagration flame propagation, this paper compares different potential factors, such as various narrow spacing and different initial gas deflagration velocity, which suppress flame propagation based on CFD (Computational Fluid Dynamics) numerical simulation.
Numerical simulation Model description.
As Distance D compared with the narrow length L and width (z direction) is much smaller, we can treat this physical model as an infinite parallel plate gap to leave only x and y directions for simulation.
Validation To validate the numerical results, data of the simulation had been compared with experimental data of a previous literature under the same conditions as be shown in Figure 8.
Conclusion A computational simulation adopting PISO algorithm and self-adapted grids was developed based on the single-step irreversible chemical reaction and the combustion model of EBU-Arrhenius.

Influences of the height of two wall-mounted rectangle cylinders on their Flow Patterns and Drag Coefficients Haiyuan Li1,a, Dawen Xue1,b, Zhihua Chen1,c, Baoming Li1,d 1State Key Laboratory of Transient Physics, Nanjing University of Science & Technology，Nanjing，China ali_haiyuan@mail.njust.edu.cn,bdawenjs@163.com cchenzh@ mail.njust.edu.cn ,dbaomingli@mail.njust.edu.cn Keywords: large eddy simulation (LES); wall-mounted cylinder; flow past cylinder; drag force Abstract: Large eddy simulation has been applied to simulate the compressible flow past one and two wall-mounted rectangle cylinders, respectively.
Using commercial CFD code CFX4, Pharoah and Djilali[3] performed numerical simulations on steady laminar flow in channels having periodic square obstacles both with and without system rotation, and found that rotation may have net benefits on heat and mass transfer processes in obstacle filled channel.
Some numerical simulations with the use of LES on flow past wall-mounted square cylinders concentrate on the comparison and validation of the numerical schemes and methods.
Schmidt and Thiele [5] compared the numerical results for flow past a wall-mounted cube at a Re=13000 with the use of LES, detached eddy simulation (DES) and RANS in order to assess of the performance of DES, and found that the main advantage of DES arises in external flows with only a fraction of grid points compared to LES.

Unsteady Wake Effect on Film Cooled Rotating Blade Ling Zhang1, a, Shan-ru Wang 1, b and Min Lv2, c 1,2Institute for Energy and Power Engineering Northeast Dianli University, Jilin, Jilin 132012, China azhangling_2009@qq.com,b835799810@qq.com,c383610338@qq.com Keywords: Unsteady wake, Film cooling, Numerical simulation Abstract.
In this paper, CFD is performed to study cascade in 3D numerical simulation.

�umerical Simulation Pressure Distribution.
Fig. 6 shows the comparison of pressure distribution between simulation and experiment results.
The simulation and experiment results have a big difference in Fig. 6a, Fig. 6d and Fig. 6e.
But the experiment curve and the simulation curve have deviation.
In Chinese [5] Fujun Wang, "Analysis of computational fluid dynamics ------Principle and Application of CFD software", Beijing:Tsinghua University Press (2004).