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For friction disc with complex grooves and solving domain, some computational fluid dynamics (CFD) software is usually used.
Building simulation model Thickness of driving friction disc is 6 mm, inner and outer diameter are 0.15 m and 0.223m, and film thickness is 0.2 mm.
However, if overall friction disc is taken as simulation object, there is a big amount of calculation.
Fig.3 The boundary conditions Simulation and result analysis (1) The rotational speed of driving friction disc is 1500r/min and the slave disc is stationary.
Vols. 468-471, (2012), p591-595 [4] Fujun Wang: Principle and Application of CFD Software(in Chinese), Tsinghua University Press, (2004).

The pressure drop and averaged heat transfer coefficient of seven rows with five tubes in each row with integral wake splitter has been determined by means of 2-D simulation using commercial computational fluid dynamics (CFD) code Fluent.
Simulations have been carried out at Reynolds number based on tube diameter from 5000 up to 27800.
The comparison between CFD and Experimental results can provide that both of cases have taken same behaviour carve.
Susan , Numerical simulation of fluid field and heat transfer of streamlined cylinder in cross flow, U.S.A. 2005.

Optimization on the Structure of Ceramic Nozzles by FLUENT Simulation Mingwei Ding1, a, Changjing Fu1,b and Sibei Yin1,c 1Shandong Labor Vocational and Technical College, Jinan,Shandong,250022,China ad_mw305@163.com, bfuchangjing@ sdlvtc.cn, cyinsibei@ sdlvtc.cn Keywords: Nozzle ; Fluid simulation; Gas-solid two-phase flow Abstract.
The simulation results have a good agreement with the experimental results.
It carried out the flow field analysis of blast nozzles of different structures, with the thought of CFD and computer simulation, it can analyze the dynamic and static performances of grain conveniently and efficiently [1].
CFD geometric modeling and meshing Consider the complex shape of the computational domain, when using the GAMBIT to divide gridding, we adopt unstructured grid.
This result is consistent with the simulation analysis.

Numerical Simulation and Experimental Verification of Butterfly Porous Fences Z.Y.
These studies laid a foundation in numerical simulation of the porous fence.
In this paper, FLUENT CFD software was used to present a numerical model for butterfly porous fence to simulate the flow characteristics behind it.
Numerical Simulation Numerical Model Establishment.
of the numerical simulation and the experiment are 0.589 and 0.639 respectively.

Using CFD software PHOENICS 3.5, Zhang Jinhua studied the law of the road tunnel fire smoke concentration field and temperature field, in different longitudinal ventilation speed[6].WK Chow[7] only changed the outlet velocity of the air curtain, simulated by CFD the large space using air curtain blocking the flue gas into the atrium from the fire area for two different sources of ignition power in certain large space ventilation rate conditions, and obtained some useful results.
The simulation time takes 300s.
Numerical Simulation on the Effectiveness of Smoke-preventing Single Blowing Air Curtain [D].
Numerical Simulation on the Influence of Air Outlet Angles on the Effectiveness of Smoke-preventing Air Curtain [J].
Numerical simulation on the Tunnel fire smoke flow [J].

The Force State Analysis of theService Door on anAirliner Chengfei FAN, Yaohua WANG,Rui MA,Mianjun DUAN, Xing CHANG College of Field Engineering, PLA University of Science and Technology, Hai Fu Xiang Street 1, Nanjing, Jiangsu, China tjufcf@163.com Keywords: The service door; Force state; Bernoulli's Equation; Computational fluid dynamics theory; Numerical simulation.
The movement trajectory and the force state of the service door were obtained by the computational fluid dynamics theory and numerical simulation method.
Then, the force on the service door is, The force analysis of the motion service door When the service door is moving, the load characteristics and the flow field would been obtained through the computational fluid dynamics (CFD) simulation analysis method[5].
The force on the service door was got by the fluid mechanics knowledge, the Bernoulli's Equation, and the computational fluid dynamics (CFD) simulation analysis method.

Simulation for Gas-Membrane Interaction of Folded Membrane Tubes During Inflation Jianzheng Wei 1,2, a, Ruiqiang Ma 1, Huifeng Tan 1,b, and Xingwen Du 1 1Center for Composite Materials, Harbin Institute of Technology, Harbin, 150080, China. 2Post-doctoral Research Center in Materials Science & Engineering, Harbin Institute of Technology, Harbin, 150080, China.
And then, the gas-membrane interaction is calculated by couple the CFD and CSD solver.
Gas-structure interaction problem is one of the challenging problems in numerical simulation, which is still on the initial stage.
The strong coupling method need solve CFD and CSD Equation in same time and spatial domain, and mesh system needn’t information exchange.
In weak coupling method, solve the aerodynamic and structural deformation by CFD solver and CSD solver, and transfer relevant data through a third party program or software.

This article built the 3d modeling of automobile exhaust muffler and through simulation analysis obtained the muffler internal acoustic pressure distribution and changes of insertion loss with frequency.
The traditional methods of muffler design which combining the experience and test leads to a long period of production design and high cost with the development of computer technology, especially the development of the numerical simulation software, to set up a new approach for the design and development of muffler.
Analysis module and calculate the hydrodynamic by FLOTRAN CFD in ANSYS.
The pressure loss calculation according to the results of the muffler CFD simulation, at the inlet and outlet pipe straight part of the central choosed a cross section measurement, measured the average total pressure of two section and got the pressure loss.
Beijing institute of technology press,2004 [5] Hu Xiaodong,etc, Resistance of single and double cavity muffler pressure loss research of CFD[J].

Therefore, this study is focused on developing an internal nozzle by analysed the characteristics of spray using ANSYS-CFX simulation with RNG k-epsilon turbulence model.
The simulation are based on plain nozzle design where the geometry and physical properties were carefully scale based on actual condition.
This study focused on investigating the internal nozzle geometries of the aerosol spray by conductly CFD modelling.
Numerical modelling The flow inside the nozzle geometry is investigated through numerical simulation based on Computational Fluid Dynamics (CFD).
The equations are solved using computer simulation software, ANSYS CFX (Version 14.0).

The CFD Model The Mathematical Model The governing equations are two-dimensional axisymmetric, compressible Navier-Stokes equations.
Boundary Conditions How to handle the boundary conditions is one of the most important parts of numerical simulation.
In this paper, the CFD numerical results on the design points are used to build the response surface to reduce the calculation for searching the optimal results.
Results and Analysis 45 design points (DOE points) are generated based CCD method, and 38 verification points are chosen randomly to calculate by CFD method.
The horizontal axis indicates the results of CFD, and the vertical axis indicates the results of prediction of the response surface.