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The numerical calculation of the hypersonic vehicle heat-flux has been an emphasis of the numerical simulation of hypersonic flow.
Numerical schemes have a greater impact on the results in hypersonic numerical simulation.
As high-resolution schemes, the WENO(weighted essentially nooscillatory) scheme proposed by Liu [5] was developed to hypersonic flow numerical simulation, and has been applied widely[6-8].
Pre-Flight CFD Analysis of Arc Jet and Flight Environments for the SHARP-B2 Flight Experiment. (2001), AIAA 2001-0982
Simulation of hypersonic wave/boundary layer interaction using high order WENO scheme. (2010),AIAA 2010-1047

The establishment of simulation model.
Before the establishment of simulation model, the computer languages simulation and tools for use should be considered.
Simulation run test.
Simulation run test is the real operating situation of which the system simulation model implements virtual system on the computer.
For example, for the technical action in the windsurfing training project in boat (board), if we use the fluid numerical dynamics simulation (CFD) [4] of system simulation, to construct mathematical model to approach the physical space, it will be very easy to realize the purpose of traditional tests through calculation, thus avoiding the problem that athlete's factor can not be considered when we use traditional means such as wind tunnel test and tank test.

The result shows that flow pattern from simulation has the same trend with experimental results.
The simulation flow pattern has the same trend with the experimental result.
The simulation flow pattern has the same trend with the experimental result.
Jeong, Large eddy simulation of turbulent flow in a T-junction, J.
Dakhil, CFD Simulations and Flow Analysis Through a T-Junction Pipe, International Journal of Engineering Science and Technology (IJEST), 4 (2012) 3392-3407

Different flow characteristics were calculated in the simulation.
Numerical simulation is a reliable method to achieve the flow characteristics at nozzle orifice.
Numerical model for simulation Different configuration of swirl nozzle was used in simulation listed in table1.
In the simulation study, Injection pressure was 8MPa.
Eulerian multiphase module was used for the simulation of multiphase flows.

After simulation calculation of the model, transonic flutter wind tunnel test of the model is finally accomplished in the wind tunnel FL-26.
After the design is completed, set up the simulation model FEM of the actual model structure as in Fig6.
Based on the calculation of the simulation model adjust the design of model structure to meet the design requirements.
Typical Mode Calculation of the Wind Tunnel Model Simulation FEM Fig10.
The transonic flutter design of aircraft is carried out through the synthesization of transonic flutter simulation by CFD and transonic flutter wind tunnel test.

Fig 1 Size chart Temperature and pressure distribution of miniature thermoacoustic refrigerator The simulation use standard turbulence model for numerical analysis with software Fluent6.3, use moderate turbulence density and the setting fit the vast majority of simulation[6].
The simulation results are shown below, Figure2 shows the pressure distribution inside the refrigerating machine, Figure3 shows the pressure distribution inside the refrigerating machine.
Fig 4 Thermal stress contour Conclusions A miniature thermoacoustic refrigerator is designed, and use CFD software Fluent6.3 to simulate it, The temperature distribution and the pressure distribution of the stability of the miniature thermoacoustic refrigerator is derived when it stably operate.
(In Chinese) [4] H.L.Shi: Mechanical and Electrical Information, Vol. 58(2010) No6,p.39 (In Chinese) [5] S.S.Sun,F.Z.Zhang and F.Y.Song: Cryogenics, Vol. 161 (2008),No1,p.14-18 (In Chinese) [6] L.H.Xie,X.Y.Zhao and J.M Zhang:ANSYS CFX Analysis and Simulation of Fluid.

Experimental apparatus is shown in figure 2.In the following intensive researches, based on hundreds of experimentations and numerical simulations, Purwanto[5] and Pan[6] found the experimental correlations of the slag particles diameter Dp (shown in Eqn.(1)) from the dry granulation method and the flow film thickness h shown in Figure 3 (the equation represented as Eqn.(2)) at the disc edge respectively
Figure 4: Liquid slag feeding mode Figure 5: Boundary conditions To allow for simulation of the interface location of air-liquid, the Governing Equations is given as Eqn. (3) ~ (6)
To gain the numerical simulation, several grids of size 5mm, 4mm, 2mm, 1mm, 0.5mm were used in the 2D simulation.
Xie, Ninth International Conference on CFD in the Minerals and Process Industries, 2012, pp. 10-12

Results and discussion Steady state simulation (i) Effects on varying Cell Densities The steady state kinetic analysis is carried out using CFD code AVL BOOST for different cell densities varying from 200 CPSI to 400 CPSI.
The simulation results are validated through experimental results obtained from Daniel Chatterjee et al.
The simulation is carried out for similar cell geometry and boundary conditions.
It has been concluded that the simulation results are in close agreement with experimental results except for the cell density 200CPSI, where a little increment of NOx conversion was found in case of simulation, when compared with experimental result.
Acknowledgement We greatly acknowledge AVL-AST for providing us software AVL BOOST to carry out this simulation work.

Early solve this coupled problem usually use a steady or quasi-steady method[5].J.C.Wang[6] used a simplified engineering approach by which the average pressure are used to compute the displacement at some key points to define the shape of the structure and the development of a multi-disciplinary CFD code to simulate Titan IV 7-segment solid rocket motor transient flowfield.
The large eddy simulation model is used in the flow field.
Effect of Nozzle Cavity on Resonance in Large SRM: Numerical Simulations,Journal of Propulsion and power, 19(2003) 374-384
[8] B.Wasistho, R.Fiedler, A.Namazifard, et al. 3-D Coupled Simulations of Flexible Inhibitors in the RSRM,AIAA 2005-3996
Pressure Oscillation in P230 SRM: Numerical Simulation,AIAA 2006-4423

Optimization and Flow Analysis of Ducted Tidal Stream Turbine Junwei Zhou, Dazheng Wang and Yanan Li School of Naval Architecture and Ocean Engineering, Harbin Institute of Technology in Weihai, Weihai 264209, China Keywords: Ducted Turbine, parameter optimization, flow analysis, numerical simulation Abstract.
Numerical method The CFD software CFX was employed to simulate flow of the ducted turbines.
The CFD method has been validated in work [3, 8], and will not repeat here.