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Using finite element analysis using ANSYS software FLOTRAN CFD calculation flow field within the closed cavity structure of the drum-shaped jet gyro sensitive components with angular velocity distribution change, which reveals the jet gyro sensing mechanism of the drum-shaped cavity structure.
Detection bridge Physical model The main airflow passage of the nozzle body as the object of study, the drum-shaped cavity for the symmetry axis of a symmetrical structure, in order to facilitate modeling calculations can be drum Zhuang cavity actual size simplified two-dimensional simulation based on the center axis of the jet gyroscopestructure, as shown in Figure 2, the total length of the gas flow area of 20mm, inlet width is designed to 1 mm, x axial boundary of the cavity length of 9mm, y is a boundary in the axial direction through the endpoints of the x axial boundary radius of 20mmarc, the exit width of 4mm, as shown in Figure 3, q1, q2 is a point heat source located at the outlet of 1.5mm at the two symmetric thermal Minsi simplified.
Finite Element Method ANSYS software FLOTRAN CFD module can be used in the analysis of two-dimensional and three-dimensional fluid motion law advanced tool [4], usually consists of three steps, modeling, applied load and computing Modeling (1) Select the type of analysis.
Select the the ANSYS software FLOTRAN CFD module
“Numerical simulation of practical engineering in ANSYS”[M].

This method is error-prone and ineffective, and cannot satisfy CAD/CAM integration and CFD analysis of impellers.
Chang-ming Yang [2] has proposed a method for calculating coordinates of points on vane surfaces, and achieved CFD simulation in centrifugal pump vane.
The vane and impeller solid model can be obtained rapidly, which set the stage for further finite-element analysis, CFD analysis, and CAD/CAM integration of impeller, etc.

In the present work, a computational fluid dynamics (CFD) model, based on the micromixer geometry and experimental conditions proposed by Ahmed et al. [3], has been used to numerically investigate the micromixing enhancement by ultrasonic vibration.
Theory and background The numerical simulations were performed using FLUENT.
The direct simulation method consists in solving the complete Navier-Stokes equations via the simulation software without making any assumption for each time step.
Thus the major disadvantage of this direct simulation method is very costly in computer time.
This flow pattern has been perfectly reproduced by the numerical simulation (Fig.4 (b)).

Figure 4 1/4 hot end box computational model FLUENT is a program based on finite volume method(FVM) which has been one of the most extensively used CFD programs.
The programs is widely applied in engineering simulation, includes many turbulence and heat transfer models.
The waste gas flow inside the hot end box is rather complicate and is typical turbulence, the governing equations for this simulation are: continuity equation, momentum equation and energy equation.
Computational results analysis 1 Temperature field distribution The simulation results of hot end box with/without internal heat conducting structure under the same boundary settings are achieved.
Optimisation of catalytic converter gas flow distribution by CFD prediction[R].

Joshi and Lan [8] discussed the application of a FE method for pultrusion simulation.
It this context, to facilitate the simulation task, it has been used a CFD code (Computer Fluid Dynamics).
CFD codes are structured around algorithms that deal with flow fluids, heat transfer and chemical reactions.
And subsequently validate in laboratory the results of the new simulation.
[4] Lizandro, Simulation and optimization of pultrusion process.

Considering the factors above, a real-time simulation code was established for simulating.
The simulation results were compared with those of the experiment, and showed that the error was smaller than 20%.
The simulation results were compared and it was showed that the error was smaller than 10%.
The hydrodynamic characteristic of the amphibious vehicle was simulated by the numerical simulation method.
It was indicated that the method based on CFD was efficient to predict drag of amphibious vehicles [17].

In this paper, Computational Fluid Dynamics (CFD) is used to analyze the micro self-vibration of aerostatic bearing with pocketed orifice type restrictor as the bearing’s performance is stable and it is widely used ultra-precision equipments.
By using Large Eddy Simulation (LES), time-variation flow field inside the bearing is obtained.
Yoshimura et al [3] brought the outer region of aerostatic bearing into simulation area and took photo the exhaust gas.
Presently, the popular method of researching the micro self-vibration of aerostatic bearing was by static simulation and dynamic experiment.
In this paper, Large Eddy Simulation (LES) is used to analysis the pressure fluctuation characteristics inside aerostatic bearing.

Three-dimensional and time dependant simulation of a planar solid oxide fuel cell stack.
Chyu, Simulation of the chemical/electrochemical reactions and heat/mass transfer for a tubular SOFC in a stack, J.
(24) At the electrode/electrolyte interface, as the current present at that point is the rate at which either a reactant/product is consumed/produced the source/sink terms for the model will be: . (25) Global Algorithm A commercial CFD package, PHOENICS was used to conduct detailed numerical simulations of the square, planar geometry.
Figures 8-13 show the results of the coupled CFD simulation.
There are various possible reasons for this discrepancy which are explained when looking further at CFD results shown in Figures 8-13.

The macromodel has been validated with numerical simulations.
As repeated simulations are required to obtain these numerical solutions, iterative design using numerical simulation is computationally infeasible.
The topologies of micrommixer Modeling methodology Numerical solution of the PDEs Computational fluid dynamics (CFD) simulations were performed with COMSOL, a finite element analysis solver.
Result contrast between macromodel and simulation The results of the macromodel and the COMSOL numerical simulation at the end of the serpentine channels have been shown as Fig.3.
Zhao: International Journal of Nonlinear Sciences and Numerical Simulation Vol. 8-4 (2007), p. 519 [4] Y.

Sarkar(2008)[6] studied downburst outflow velocity characteristics by conducting wind tunnel experiments and CFD simulations, and two empirical equations corresponding to maximum radial velocity distribution and boundary layer development, respectively, were proposed.
Holmes, Numerical Simulation of Thunderstorm downdrafts, Journal of Wind Engineering and Applied Aerodynamics. 41-44(1992) 2817-2825
[3] M.T.Chay, F.Albermani, R.Wilson, Numerical and Analytical Simulation of Downburst Wind Loads, Journal of Wind Engineering and Industrial Aerodynamics. 28(2006) 240-254
[5] L.Chen, C.W.Letchford, Numerical Simulation of Extreme Winds from Thunderstorm Downbursts, Journal of Wind Engineering and Industrial Aerodynamics. 95(2007) 977-990
[9] Chao Li, Q.S.Li, Y.Q.Xiao, J.P.Ou, A Revised Empirical Model and CFD Simulations for 3D Axisymmetric Steady-state Flows of Downbursts and Impinging Jets, Journal of Wind Engineering and Industrial Aerodynamics. 102(2012) 48-60