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By building a 2D axisymmetric model of 300mm DF-CCP etcher in CFD-ACE+ software, plasma simulation experiments are carried out by orthogonal design.
In this paper, based on a 300mm DF-CCP etcher, a two dimensional fluid model is built with CFD-ACE+.
Then carry out the simulation experiments by orthogonal design.
With argon as the process gas, The CCP discharge simulation is solved in CFD-ACE+ software by the finite volume method, with transient simulation employed.
Then compare the optimization results with simulation results.

The tracking of massless contaminated particle (infection) has also been carried out by simulation.
The present study includes the simulation of such cases to control the infection in the surrounding areas in the hospital.
CFD was initiated around 1930.
Computational fluid dynamics (CFD) models are used to predict the air velocity, turbulence level & air temperature.
Gadgil, CFD investigation of room ventilation for improved operation of a downdraft table – novel concepts, J.

Keywords: gas explosion; dump vessel vented; CFD; maximum pressure Abstract.
The CFD model used provided a reasonable agreement with the experimental results.
Numerical simulation.
Calculation domain and simulation conditions set-up.
Simulation results and discussion.

The computational fluid dynamics (CFD) code FLUENT is used in description of the turbulent gas flow and the particle motion under electrostatic forces.
Fig. 1 ESP velocity field simulation result..
Simulation of particle trajectory in different size.
Simulation of particle trajectory in different charging voltage.
Conclusions CFD code FLUENT is a powerful application in the study of particle trajectory simulation.

The simulation of wave influence on ship hydrodynamics by using CFD is gaining increasing attention in recent years.
The usefulness of CFD simulation will be increased when these unsteady characteristics can be predicted with sufficient accuracy by improved techniques.
The comparisons among the CFD simulations, experimental data of the Wigley model from the results of Delft University of Technology and the theoretical solution of potential flow are presented in this section and illustrated in Figs. 2 and 3.
The transfer functions of heave and pitch by CFD are close to the measured one.
Unsteady RANS simulation of the ship forward speed diffraction problem.

The method was applied in a modeled densely urban domain, and CFD simulations were conducted to obtain the wind pressure distribution on the building surfaces.
, (6) where p1 and p2 can be derived from the CFD numerical simulations in the specified domain.
Numerical simulations CFD simulations for wind environments in urban areas are performed using Ansys Fluent 12.
The CFD simulation domain is designed as a densely built-up area.
CFD simulation domain.

The Performance Simulation of One-way Inlet Valve of Reflux Scavenging Free Piston Engine ZhenXin Li1, a, ZhaoCheng Yuan1,b, JiaYi Ma1,c , ShiYu Li1, d 1 State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun, China alizhenxin747@163.com, b yuanzc0528@126.com, c yijiama@126.com, d wei6811607@163.com Keywords: One-way inlet valve, CFD, Free piston engine, Reflux Scavenging Abstract.
The displacement –time relationship of piston was made into the data table, which was imported the CFD for simulation.
The lift of valve In the CFD software, we can define the piston as the moving object and the movement law by importing previously obtained data table.
Simulation of a Two-Stroke Free Piston Engine.
Performance Simulation of a Compression Ignition Free Piston Engine.

Slobody 17, 812 31 Bratislava, Slovakia amichal.varchola@stuba.sk, bpeter.hlbocan@stuba.sk Keywords: mixed flow pump, CFD simulation, axial diffuser, best efficiency point Abstract.
THE INFLUENCE OF THE MENTIONED PARAMETERS IS DETERMINED BY THEIR VARIATION AND AFTERWARDS WE WERE FOCUSED ON THE VALUES OF HYDRAULIC EFFICIENCY AND TRANSPORT HEIGHT OBTAINED BY CFD SIMULATION.
CFD SIMULATION OF THE FLOW IN THE PUMP CFD simulation was performed in the calculated area, which included the straight section of the suction pipe, impeller, diffuser and a section of the discharge pipe (Fig. 5).
Impeller considered in the CFD simulation was without front shroud (open impeller).
The simulation uses implemented SST turbulence model and automatic wall function.

CFD modeling of the fast pyrolysis of coal in cold flow fluidized bed Anning Zhou 1,a, Tieshuan Zhang 1,b, Xiubin Ren 1,c, Lizhen Zheng1,d 1School of Chemistry and Chemical Engineering, Xi’An University of Science and Technology, xi’an710054, China azhouanning2004@yahoo.com.cn, bshuan.2008@yahoo.com.cn, crenxb@xust.edu.cn Keywords: CFD, Gas-solid flow, Drag model Abstract.
On the basis of the cold test data, the CFD model has been built.
In the simulation, the numerical method for the solution is the finite volume method.
CFD modeling of a countercurrent staged fluidized bed, 2008(137):664-676
[8] Tsuji, Y., Kawaguchi, T. and Tanaka, T., Discrete particle simulation of two-dimensional fluidized bed.

The present work employs the EMMS/bubbling model [11] for CFD simulations of a fluidized bed of Geldart-D particles.
The parameters and values used in CFD simulations are summarized in Table 1.
Properties of the particles and beds used in the simulations.
For numerical simulation in CFD, MFIX 2015 was used, which is an open source code and allows the insertion of drag models in the file "usr_drag.f".
The Table 1 shows the values used for simulation, and obtaining Hd.