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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].

azhouhua@cjwsjy.com.cn, bdingjianxin@cjwsjy.com.cn, czhangzhicheng@powerchina.cn, dwangzhanjun@cjwsjy.com.cn *Corresponding author Keywords: water temperature, reservoir, calculation, CFD, solar shortwave radiation Abstract.
In the numerical simulation of turbulence, the Reynolds averaging method solves the time-averaged Reynolds equation, avoiding the problem of large amount of calculation.
The Finite Volume Method is the most widely used method in CFD numerical simulation.
A general model that uses to predict the water temperature distribution of the reservoir is built by using customized CFD software FLUENT.
[4] Wuhan University, 2012.Research on the 3D Integrated Simulation Analysis of the Whole Process of Dam Construction and Impoundment[R].

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.

However, more computations are needed for detailed simulation of all processes.
Especially important is simulation of thermal and pressure states inside cask, which is our next task.
Tsai, The development of a three-dimensional transient CFD model for predicting cooling ability of spent fuel pools, Applied Thermal Engineering 50 (2013) 496-504
Xiong, The design and simulation of a new spent fuel pool passive cooling system, Annals of Nuclear Energy 58 (2013) 124-131
Feria, CFD analysis of a cask for spent fuel dry storage: Model fundamentals and sensitivity studies, Annals of Nuclear Energy 76 (2015) 54-62

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].

Multidisciplinary Design and Simulation Process.
Master model is abstracted to construct the simulation context model, which is used to perform engineering simulation.
Design and simulation is a repeated iteration process.
The simulation flow runs in the multidisciplinary simulation platform.
The platform can integrate the common used commercial CAD/CAE/CFD software and build design and simulation flow.

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.

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.

The finite element analysis and numerical simulation Finite element model.
Grid is an important step for the finite element analysis, on the numerical simulation precision has a great influence.
Fig.3 Grid division Simulation analysis.
High Order Schemes for CFD:A Review[J].
Critical Issues in the Simulation of HotForming Operations[J].