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This study identifies that CFD is a valid tool for exactly investigating the flow and valve plate movement.
In this paper, theoretical calculation and CFD simulation are used to analyze the valve plate movement.
The numerical simulation result shows that the open and closed angle of the valve plate are 53.2° and 219.5°, and it is very close to the theoretical calculation result (56°, 220°), which proved the correctness of CFD numerical simulation for reciprocating compressor.
(3) CFD simulation of valve plate movement is very close to the theoretical calculation, which proves the correctness of CFD simulation for reciprocating compressor.
Cyklis, CFD Simulation of the Flow Through Reciprocating Compressor Self-Acting Valves[C], International Compressor Engineering Conference, 1994, pp. 427-432 [5] A.P.Peskin, The Effects of Different Property Models in a Computational Fluid Dynamics Simulation of a Reciprocating Compressor [J], International Journal of Thermophysics, 1999, Vol. 20, No. 1, pp. 175-185 [6] Pérez-Segarra,C.D.

Fault Diagnosis Research for Mine Fan Based on the CFD Sheng Fua, Xiao-Fan Dub *, Kan Luoc and Yong-Gang Xud College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China afusheng@bjut.edu.cn,bxiaofan127@yeah.net,clkcdebaqef@163.com,dxyg@bjut.edu.cn Keywords: Axial flow fan, Computational fluid dynamics (CFD), Simulation, Fault diagnosis.
CFD Numerical Simulation of Aerodynamic Performance of Mine Ventilation Control Equations.
Lastly, the simulation analysis was carried out on the fan.
Simulation results are given as follows.
Therefore, different axial fan faults can be identified and diagnosed by the method of CFD simulations analysis.

CFD simulation of flow characteristics in liquid-liquid ejectors Yan Zhang1, a, Yangdong Hu1, b and Lianying Wu1, c 1College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, Shandong, 266100, China aouczhangy@126.com, bydhuhd@ouc.edu.cn, cwulianying@ouc.edu.cn Keywords: liquid-liquid ejector, flow field distribution, turbulent dissipation rate, CFD simulation.
CFD modeling Ejector consists of the nozzle, the suction section, the mixing section and the diffuser.
In the simulation, boundary conditions of the working and secondary flow inlets are set as “velocity- inlet” condition.
The appropriate angle is about 24° after further simulation.
Conclusions In this paper, a CFD simulation is developed to study the hydrodynamic characteristics of ejectors with CFD software Fluent 6.3.

CFD simulation of Gas Distributor with Two Chambers Dongfang Zhao1, a and Fengguo Liu 1, b 1School of Energy and Safety Engineering, Tianjin Chengjian University, Tianjin 300384, China azdf_tj@163.com, blfg_tj@126.com Keywords: CFD, RNG k-ε turbulence model, Uniformity, gas distributor.
This paper investigated a new type of gas distributor with two chambers by CFD software.
The simulation results will provide a number of useful suggestions and references for the further design.
Summary The CFD program used was CFD-14.5.
Joshi, Design of a gas distributor: Three-dimensional CFD simulation of a coupled system consisting of a gas chamber and a bubble column, Chem.

Study on Influence of Geometric Parameters on DMFC Performance Based on Experiments and CFD Simulations Biao Yua, Han Zhaob School of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei, Anhui, China 230009 ayubiao619@gmail.com, bhanzhao@mail.hf.ah.cn Keywords: Direct methanol fuel cell (DMFC), Geometric parameters, Computational fluid dynamics (CFD) Abstract.
Experimental Tests and CFD Modeling Experimental Setup.
CFD Modeling.
CFD Simulation Results and Discussions Increasing of pressure inside the DMFC can improve the performance and the reason is that the high pressure can improve the mass transfer efficiency of fuel and oxygen, and high pressure also can improve the removal of CO2 and water which are generated by the electrochemical reactions.
Conclusions In this research, experimental study and CFD simulation are employed to investigate the influence of geometric parameters on DMFC performance.

CFD Simulation of Heat Transfer of Pulsating Gas in a Pipe Zhiren Yin1, a, Lijun Yang1, b, Runze Duan1, c 1School of Astronautics, Beihang University, Beijing, 100191, P.R.
China ayinzhr@gmail.com, byanglijun@buaa.edu.cn, cdhbdrz2@163.com Keywords: heat transfer, pulsating gas, CFD simulation Abstract.
Numerical Simulation of pulsating flow in a pulse combustor tailpipe was performed using computational fluid dynamics (CFD) method.
To get a better understanding, numerical simulation is a good choice.
The simulation was carried out using Fluent 6.3.

The study involves developing a 2D CFD model of diffuser, acquiring simulation results and comparison with experimental results.
The mesh is generated in ICEM followed by simulation in CFX.
The paper presents CFD simulation of 2D model of diffuser simulating the velocity profile along the center line of the model.
Norimasa two-way straight type model without flange, without brim, is selected for CFD simulation in this study.
CFD simulation of 2D model of diffuser is carried out.

The Simulation and Optimization on Flow Field in Intake Port of Engine Based on RE and CFD Dan HAN1, Qian WANG1 ,Binghuan Li1,Guojun ZHANG2,Shuo WANG2 1School of Energy Resources and Power Engineering, Jiangsu University, Zhenjiang 212013,China 2Research Center of Fluid Machinery and Engineering, Jiangsu University, Zhenjiang 212013 qwang@ujs.edu.cn Keywords: Gasoline engine, Intake port, CFD numerical simulation, Discharge coefficient.
In this paper, three-dimensional CFD calculation and structural optimization were used to research the performance of gasoline engine.
The results of the simulation of flow field characteristics analysis show that the simulation and experimental results are in good agreement.
As can be seen from fig.7, the discharge coefficient obtained by simulation and experiment are consistent, but the discharge coefficient obtained by simulation is slightly less than the experiment.
CFD simulation results were analyzed to evaluate the intake system, and an improved scheme is put forward.

Air Flow in Large Space Building with CFD Model and Local Test Wang Jun, Wang Haixia Henan University of Technology, Zhengzhou, Henan, China, 450052 Keywords: large space building, air distribution， thermal comfort, CFD simulation, local test Abstract.
Simulation with CFD and local test are two main methods in study on air flow in large space building.
In the simulation computation, k-ε dual equation model is adopted and CFD software for AIRPAK applied.
CFD simulation research under design conditions The establishment of the model remains basically the same with that of the above stated model.
The agreement of tested data and simulation computation results testifies accuracy of applying CFD software of AIRPAK in simulation of large space buildings

In current research, Computational simulation using CFD (Computational Fluid Dynamics) is performed with RANSE code in order to obtain catamaran performance in resistance.
Therefore, the accuracy of CFD for Semi-SWATH is analyzed by comparing the simulation result with experimental result in both catamaran and SWATH mode.
CFD application is widely used in resistance and wave profile prediction of ship.
CFD computational domain for Semi-SWATH CFX Numerical Simulation CFX is one of software capable in calculating ship resistance.
The simulation result shows that the CFD method applied is acceptable in predicting resistance values.