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The aim of this paper is to introduce, in broad strokes, a framework – constructed from a fusion of granular flow (GFD)  dynamics, tribology and computational fluid dynamic (CFD) techniques – for the practical analysis of mass finishing processes.
The granular fluid rheology model equations may be used to close the continuum continuity and momentum equations: ∂ρ∂t + ∂ρuj∂xj=0 (6a) ∂ρui∂t+∂uiuj∂xi=∂σij∂xj+ρfi (6b) so that is possible to solve for the media flow field using a general purpose CFD software code such as ANSYS CFX or ANSYS Fluent.
Tay, "Process modelling and simulation of vibratory finishing of fixtured components", Proc. of the 10th EUSPEN (European Society for Precision Engineering and Nanotechnology) Conf vol. 2, pp. 269-273.

Simulation results and discussion.
The simulation method is similar to the former , and we omit here.
Basing on the simulation results, we determine that α is 120°,β is 80°.
On the base of simulation results, we have redesigned the nozzle .
Wang: Computational fluid dynamics analysis—the principle and application of CFD software.

Numerical Simulation of Natural Cavitating Flow over Axisymmetric Bodies Qiankun Liu1, a and Ye Gao2, b 1, 2College of Aerospace and Civil Engineering, Harbin Engineering University Harbin, Heilongjiang, China aliuqiankun_heu@163.com, bgaoye66@126.com Keywords: Natural cavitating flow, Multiphase mixture model, Numerical simulation, Axisymmetric body Abstract.
Coupling with natural cavitaion model, a multiphase CFD method is developed and is employed to simulate supercavitating and partial cavitating flows over axisymmetric bodies using FLUENT 6.2.
Recently, more general CFD approaches had been developed to analyze the cavitating multiphase flows.
Simulations are performed on cylindrical bodies with different types of head shapes at a fixed inlet velocity V∞=10m/s.
Such a “forward facing step” flow is well known to provide significant challenges to numerical simulations.

A three-dimensional CFD model has been implemented to simulate temperature field, material flow, and microstructural aspects in an Eulerian framework.
In the present investigation, material flow, temperature distribution and recrystallization phenomena in FSW have been simulated by a CFD model in an Eulerian framework.
Shercliff, 3-Dimensional CFD modelling of flow round a threaded friction stir welding tool profile, J Mater Process Tech 169 (2005) 320–327
Khraisheh, Modelling of Friction Stir Processing Using 3D CFD Analysis, Int J Mater Form 2 (2009) 315–318
Debroy, Numerical Simulation of Three-Dimensional Heat Transfer and Plastic Flow During Friction Stir Welding, Metall Mater Trans A 37 (2006) 1247-1259

Numerical simulation. lift drag ratio.
In this article, the NACA0012 foil whose performance was calculated by CFD method was chose as a study object.
And the validity of the CFD method was proved by contrasting the calculation results with the experiments.
This paper is related to numerical simulation of the attached surface layer suction phenomenon.
Liang, R Bohning, Numerical simulation of shock wave/turbulent boundary layer interaction with passive cavity [J].

Simulation results show that, water fluctuation and energy dissipation of round-flow emitter in vibration mode are better than that of constant pressure.
Application of CFD (Computer Fluid Dynamics) software FLUENT to study the relationship between flux and pressure under vibration pressure,using user-defined functions UDF to realize the boundary condition of vibration pressure, which can provide reference and basis for the selection of vibration parameters.
It is an assumption that there is no interaction between the variable factors.We design anorthogonal test table that each vibration mode consistsof 9 groups simulation program, as shown in Table 1.
Flow Field Numerical Simulation.3D model of the round-flow emitter is designed by means of Pro/E.
Fig.3:Outlet flow value of round-flow emitter under the sine vibration mode 1 simulation program.

To analyze the flow field in the valve, numerical simulations are also performed in the paper.
Fig.2 Model of Flow Domain in the Vent Valve In order to study the flowing situation, the commercial computational fluid dynamics (CFD) software FLUENT is introduced into this paper.
To improve the precision of the computation, the RNG k-εviscous model is introduced into the simulation.
Numerical simulation is conducted by using the CFD software FLUENT, and the field parameters such as pressure and velocity are studied thoroughly which will do great help to the research of the vent valve.
Dynamic simulation of 3D flow field of train damper.

This paper investigated the effect of runner and gating optimization in reducing the gas porosity inside casting by evaluating the fluid and thermal distribution behavior in experimental and Computational Fluid Dynamic (CFD).
This paper includes an X-ray of a sample product that shows correlation between gas porosity and CFD results.
Based on localized porosity position, runner and gating system is modified and numerical simulation is carried out for analysis.
CFD (a) Test Piece Geometry (b) Conventional Sample Mold CT Scan (c) Measured Porosity at 16 mm Thickness Probe Position of S, T and U Fig. 2.
Numerical Analysis Results Molten behavior is analyzed based on CFD flow simulation, where the surface plot color range relates to the molten parameters and values during injection molding.

A mathematical model for the simulation of the transport phenomena occurred in the anode of a typical fuel cell is presented here.
This approach has been numerically implemented and solved by using the finite volume method being applicable through the CFD-RC© commercial package.
Further to this simple modeling approach, a more detailed 2-D simulation has also been implemented for the same processes in order to overcome superficial assumptions and mathematical manipulations.
The finite volume method was used through the commercially available software package CFD-RC © for the solution of Eqs. (14)-(17) where the simulated domain was discretized by an unstructured grid.
Eleni Vakouftsi for her technical assistantship in CFD-RC© issues and Mr.

The influence of the capacity-increasing in the trailing-edge cutting of HL240 turbine blade Yu LIN 1,a, Shuren HAN 2,b, Min SHENG 2，c 1 School of Mechanical and Electrical Engineering ,Guangzhou baiyun of school,GuangDong, China 2 School of Electrical Engineering and Automation, JiangXi University of Science and Technology, Ganzhou JiangXi, China 3 School of Mechanical and Electrical Engineering, JiangXi University of Science and Technology, Ganzhou JiangXi, China ajxlgjd@126.com,b yuanyuan_1025@163.com, c beancurdsm@yahoo.com.cn Keywords: Francis turbine; cutting tip; capacity-increasing rebuilding; small electric station Abstract: In the precondition of calculating the flow field around the blade with the singular distribution way, the hydraulic characteristic after cutting the mixed-flow blade is calculated by CFD software , the optimum value of output in HL240-WJ50 water turbine and the influence of the flow field are found out by using that way: when the cutting measure
Flow field’s simulation The distribution situation of the flow field around the blade ’s airfoil is calculated by the singular distribution way, and the airfoil’s pressure distribution is shown in Fig.2(a), the abscissa Arc length is the arc distance of the airfoil’s each point to feed-water edge after cutting, the ordinate is the static pressure distribution of the airfoil’s each point.
NUMECA company's core software is developed on the basis of the CFD software- Europe aerodynamic numerical solver (EURANUS), the CFD is written for the European Space Agency (ESA) by the Fluid Mechanics Department of the Free University of Brussels, Belgium in the 1980s.
FINE / TURBO software package can be used for any compressible or incompressible, steady and non-steady, two-dimensional or three-dimensional viscous or inviscid internal flow numerical simulation.