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And the method of CFD simulation and theory will be a reference for relevant research.
With the developing of CFD software, nowadays we can do researches and analysis in virtual.
Therefore, in commen CFD engineering software, the reynolds stress model is always simplified such as two equations model.
Simulation Calculation Establishing 3D model.
So, Hex gird does much better accuricy in both delivering vector load and fluid simulation.

Flutter Analysis of Compressor Blade Based on CFD/CSD Jin Cai1, a, Qingze Xu2,b , Zheng Wang3,c 1.
The calculation method with FSI, which is coupling calculation of the unsteady aerodynamic force and structure instant deformation, could greatly increase ratio of precision in numerical simulation, especially in transonic domain where had the high nonlinear influence.
With the rapid developments of CFD calculation technique and great improvements of computersperformance, the coupling calculation method of CFD/CSD developed promptly[3].
Simulations and Results Fig.1 Flow and structure computational grids NASA Rotor 67 has been recognized as a popular test case for three-dimensional viscous flow prediction procedures [4, 5] because of its detailed experimental data using a laser anemometer [6].
AIAA 2005-4013. (2005) [5] X.G.Zheng, F.Liu, C.A.Zhang, Flutter computation of turbomachinery blades based on CFD.

Internal Flow Analysis of SCR-Exhaust Aftertreatment System Lin-lin REN1,Wei DING1,Zhe ZHANG1,a,Tao CHEN2,Ming-xin BI2, Ying-chao ZHANG1 1State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun China 2Faw Jiefang Automotive Company, LTD, Changchun China aCorresponding author zhangzhejlu@jlu.edu.cn Keyword: SCR-Exhaust aftertreatment system; carrier; CFD; gas flow uniformity Abstract: Selective Catalytic Reduction system (SCR) has made great contributions to diesel engine NOx control technology.
In this paper, CFD technology was used to simulate the internal flow field, and analyze the gas flow uniformity, which would give us reasonable suggestions to optimize the structure of SCR-Exhaust aftertreatment system.
According to the needs of simulation, one CAD software was used to process the geometric models by keeping the inner surfaces.
Inner structure of models Simulation Schemes We set up two research schemes to thoroughly study the SCR’s internal flow mechanism.
On the whole, CFD technology is vivid and intuitive to simulate the internal flow field, which make the optimization of SCR system more targeted and reduce the improvement cost.

Along with flying development of computer and increasingly ripe of CFD software, the result got from computer simulation can replace the test result from high cost test at a certain extent[2].
Therefore by using CFD software, three models of two-dimensional trajectory corrector projectile in mortar with same canards and different fins are carried out aerodynamic simulation.
Simulation of External Trajectory of Rockets.
Computer Simulation, Vol.6(2003), p. 17
Aerodynamic Simulation Methods of Anti-tank Missile.

The objective of this paper is to evaluate, through Computational Fluid Dynamics (CFD), the potential to reduce the internal temperature of a building located in the city of Rio de Janeiro, Brazil.
The temperatures of the bottom sides of the roof were obtained in loco in the analyzed residence and in a residence with similar characteristics, but without the GR, and constituted the input data for a Computational Fluid Dynamics (CFD) simulation, in order to obtain the average temperature difference between the internal and external environments of the buildings.
This information constituted the input data for the CFD simulation, carried out in Solidworks software, to obtain the average temperature difference between the internal and external environments of the buildings.
CFD simulation analyzes the thermodynamic parameters of a fluidic system and can be used to assess diffusion and convection in the environment, the aerodynamics of complex parts and designs, and temperature, pressure, and velocity in the fluid flow, both in laminar and turbulent regimes.
Although CFD models can effectively provide reliable results, they have limitations regarding the adaptations of the actual physical model to the boundary conditions entered in the program.

Coupling model of CFD/FE/BE.
In this paper, CFD, FEM and BEM with RIA are coupled to solve above problem.
In order to simulate the propeller fluctuated thrust and torque, a CFD tool is adopted.
Thirdly, as the inflow and balanced rotation speed of the propeller is known, the propeller is transit analysed with large eddy simulation (LES) and the propeller fluctuated thrust and torque in time domain is abstracted and transformed to frequency domain.
Fig. 1 Submarine CFD/FE/BE model.

With the tremendous development of computing technologies, CFD tools have become more and more affordable.
Now development of CFD modeling and availability of low cost and high speed computers have allowed performing three-dimensional simulations of complex multiphase flows in flotation column.
So the choice of turbulence models is the k-ε model in our study on CFD simulation of flotation column flows.
Results and analysis of numerical simulation Jet aerator Here are the numerical simulation results of the jet aerator.
Joshi, CFD simulations of bubble column reactors: 1D, 2D and 3D approach, Chemical Engineering Science. 60 (2005) 6733-6746

Therefore, the use of CFD has very important reference value for the numerical calculation of internal pressure pipe flow field.
The summary of CFD CFD is the numerical calculation and analysis by computer technology and numerical calculation technology, and it is used for solving momentum, heat and mass equation and other relevant equations, and obtain the relevant information about fluid under certain conditions by computer simulation, it is a extensive used tool of analyze and solve problems [2].
Residual curve map The simulation results and analysis.
The development and application of CFD [J].
The comparison of RNGκ-εmodel and Realizable k-e in the 3D simulation of centrifugal pump [C].

The Numerical Simulation and Analysis of New Metal Cold Condole Radiation Panel Zheng Lihong1, a ,Ma Li2,b 1Southwest University of Science and Technology, Sichuan, China 2Southwest University of Science and Technology, Sichuan, China aemail:yezi850403@126.com, bemail:mali0525 @126.com Key words: radiation plate structure, new radiation panel, CFD simulation Abstract.
The paper analyzed the advantages and disadvantages of the existed radiation plate, proposed new radiation panel structure, then made the CFD modeling and flow optimization analysis.
Convergence criteria reflect the accuracy of simulation.
The convergence criteria of the energy equation in this simulation are taken as 1×10-6.The convergence criteria of flow equations is taken as 0.0001.
Analysis of simulation results 5.1.

The computation fluid dynamics (CFD) software is applied to simulate the multi-phase oil mist flow in control box.
This paper applies CFD software, FLUENT, to numerical simulation of oil mist process, and analyzes the varying laws of pressure and velocity of oil mist in main control box, and how the different entering positions effect the oil mist treatment.
Numerical Simulation.
With the numerical simulation method mentioned above, the control box is solved and simulated.
Wang: Computational Fluid Dynamics——Principle and Application of CFD Software (Tsinghua University Press, China 2004)