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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

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.

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.

Application of CFD flow analysis software and the SIMPLE algorithm described viscous flow field within the three-dimensional centrifugal fan.
By comparing simulation data with calculated data, optimize the turbine design.
In addition, the most critical characteristic is that the software can generate files directly for CFD calculation, which greatly simplifies the calculation of the fluent pre-processing.
At the last, the software CFD is used for the simulation of the model.
[3] Xie Dan,Chu Wuli: Computer Simulation,4(2009)344~347

The technology of computational fluid dynamics (CFD) was used in this paper.
The average of 3 tests compared with the simulation result is shown in Fig.3.
Then stable experimental data was compared with the simulation value.
Lin, CFD Simulation of Flow and Temperature Fields in Large Space Building, Nanjing University of Aeronautics & Astronautics.(2007) 19-20
He, Research on Airflow and Air Temperature Simulation in the Piggery Based on CFD, Central China Agricultural University.(2009) 26-30

Using Fluent software on the horizontal axis wind turbine numerical simulation, analysis of the United States of America S809NREL airfoil aerodynamic characteristics of different angles of attack numerical simulation, analyzes the different angles of attack in the vicinity of the pressure, velocity distribution.
Wind tunnel test study on time-consuming, costly, and with the development of computer technology as well as the turbulence model is ceaseless and perfect, the application of computational fluid dynamics ( CFD ) numerical method research of wind turbine airfoil aerodynamic performance has become the important way and development trend.
CFD numerical simulation to describe complex geometry boundary and flow structure, and in the early design quickly and improve design performance evaluation, performance optimization and save time, save money, greatly reducing the risk posed by new design[1].
Therefore, in recent years on airfoil aerodynamic performance testing more application CFD numerical simulation[2].
This paper uses the CFD software Fluent analysis of the United States of America S809NREL airfoil aerodynamic characteristics of different angles of attack numerical simulation, analyzes the different angles of attack in the vicinity of the pressure, velocity distribution.。

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)

Numerical simulation of cavitating turbulent flow in a Francis turbine with draft tube natural air admission Hongming ZHANG 1, a, Lixiang ZHANG 1,b 1 Department of Engineering Mechanics, Kunming University of Science and Technology, Kunming 650500, P.R.China ahmzhang8888@126.com, bzlxzcc@126.com Keywords: CFD; cavitating turbulent flow; air admission; Francis turbine; OpenFOAM.
OpenFOAM is an object-oriented C++ library of classes and routines of use for writing CFD codes.
It has a set of basic features similar to any commercial CFD solver, such as turbulence models and discretization schemes.
It is increasingly being used in the numerical simulation of hydraulic machinery.
SIMULATING CAVITATING FLOWS WITH LES IN OPENFOAM, V European Conference on Computational Fluid Dynamics, ECCOMAS CFD 2010, J.

So this new water-jet propulsion method is feasible and it is an effective way to conduct the research by CFD simulation.
The simulation model of its drive device is built.
The simulation volume flow rate and the simulation average velocity of the flow are obtained in the report of the simulation results by the software Fluent.
It is proved that the method of CFD simulation is a feasible and effective way to study the physical model, and the simulation results could provide some references for designing and conducting research on this new water-jet propulsion device.
Mechanism Analysis and Simulation of Water-Jet Propulsion[J].