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For this problem, the development of CFD provides powerful tool which can calculate high-precision numerical solution and achieve visualization[3,4].
Simulation Results and Analysis The Internal Flow Field of Micro Injector.
All units of the whole flow field must be initialized before simulation, then labeling the air area.
Mathematics and Computers in Simulation [M].Holland: North Holland, 1981
Numerical Simulation of Engineering Fluid by Using CFD Software[J].

Analysis and Study of Back Eddy Flow Field Effecting Compact by Angle of Meeting Flow of Reef Kaimin Wang1,a*, Yihong Yang 2,b, Yong Chen3,d, Shuguang Luan1,c 1School of Marine and Civil Engineering, Dalian Ocean University, Dalian 116023, China 2 Shandong Association of Oceanic Engineering, Aquatic Design Institute,Jinan 250013, China; 3Center for Marine Ranching Engineering Science Research of Liaoning, Dalian Ocean University, Dalian 116023, China awkm@dlou.edu.cn, byangyihong-2008@163.com, cchenyonng@dlou.edu.cn , dshugluan@qq.com Key words: Artificial reef; meeting flow angle; back Eddy; Numerical Simulation Abstract: By changing artificial-reef’s meeting flow angle, Use the CFD imitate three-dimensional flow field under the compaction of constant flow, and analyze the effect of back eddy flow field quantitatively.
Now at home and abroad, the research method about artificial reef mainly includes physical model experiment, wind tunnel experiment and numerical simulation.
Use CFD software, carry on numerical simulation tests for six kinds of reef model which differ in meeting flow angle, by change the meeting flow angle, analyze the back eddy flow field effecting, conclude the best meeting flow angle, in order to provide a basis and reference of the reef’s design and make for our country.
Dim the bottom side length as reef length, then, the length of reef model A; B; C; D; E; F are 2m; 2.54m; 3.15m; 4m; 5.46m; 9.46m respectively. 2.5 Tests and determination of boundary conditions The artificial reefs are set in coastal waters generally, in this paper, the computational simulation depth of water was set as 15m, and the flow velocity was set as 2m/s.
Fig.3 Variation about the height; length; width of back eddy with the meeting flow angle Conclusion Paper used CFD software, carried on numerical simulation tests for six kinds of reef model which differ in meeting flow angle, analyzed the back eddy flow field effecting, conclude that: When the meeting flow angle changes from 90° to 15°, the height of the back eddy flow increase at first then decrease, when the angle is 75°, the height of back eddy flow is the largest, when the angle between 90° and 60°, the height achieves larger value.

SIMULATION OF SPOUTED BED USING A EULERIAN MULTIPHASE MODEL C.
The pattern of solid and gas flows in a spouted bed was numerically simulated using a CFD modeling technique.
A commercially available, control-volume-based code FLUENT 6.1 was chosen to carry out the computer simulations.
Numerical simulations have become popular in the field of dense gas-solid two-phase flows.
Many researches have been making numerical simulations of fluidized beds and spouted beds.

CFD Investigation for Indoor Environment of A District Standard Room in Jinan City Dong Yang1,2,Qingmei Wen1,2,a,Congju Zhang1,2,Xueting Liu1,2,Shijun Wei1,2 1Key Laboratory of Renewable Energy Utilization Technologies in Buildings of the National Education Ministry, Jinan 250101, China 2Shandong Provincial Key Laboratory of Building Energy Saving Technology, Jinan 250101, China awenqingmei713@163.com Key Words:roof radiation;displacement ventilation;composite systems;numerical simulation Abstract.
Simulation results and analysis Characteristics of indoor temperature distribution.
Conclusion Use the CFD method to simulate the temperature and velocity field of the room, whose system is combined with cooling roof and displacement ventilation, contrast verification of all data show that this simulation model is established by reasonable, the combination of cooling roof and displacement ventilation system can overcome the shortcomings that when they used along, so that is very good to meet the requirement of thermal comfort.
Simulation and Analysis of the Radiant Floor Cooling and Displacement Ventilation System[J].
Numerical Simulation of Different Kinds of Air Distribution For the Indoor Environment Quality [D].Chongqing University, 2005,10

This paper aims to numerically investigate and compare the effectiveness of CFD (Computational Fluid Dynamics) with experimental results.
This paper aims to numerically investigate and compare the effectiveness of CFD (Computational Fluid Dynamics) with experimental results.
In this study, we simultaneously compare the experiments and CFD simulations regrading two different fire loads of 1 and 5MW for 6 minutes and 20 minutes, respectively.
Generally speaking, simulations results are in a good agreement with experimental observations.
The following conclusions can be drawn form simulation results: 1.

Optimization of Sonic Boom Suppression by Off-body Energy Deposition FENG Xiao-qiang1, a, LI Zhan-ke2,b SANG Jian-hua3,c, SONG Bi-feng4,d, 1School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China 2School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China 3School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China 4School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China a fxqnwpu@163.com, b lzk@nwpu.edu.cn, c angianua@yeah.net, dbfsong@nwpu.edu.cn Keywords: sonic boom; CFD; off-body energy deposition; shock wave Abstract: Sonic boom suppression method is the key technology of next generation supersonic aircraft.
Off-body energy deposition analysis software is developed based on CFD, waveform parameter method and NSGA-II genetic algorithm.
Wu Li researched the mixed fidelity approach for design of low boom supersonic aircraft by using CFD and SGD inverse design method [3].
Figure 2 Sketch of sonic boom suppression by off-body energy deposition 2.2 Numerical simulation method The effects of energy deposition are investigated using a three dimensional Euler equations and the set of Euler equations with energy deposition in GCC coordinates are shown in Eq.4~Eq.8 [7]: (4) (5) (6) (7) (8) Where ρ and p denote the gas density and pressure, respectively, u1,u2 and u3 are the x, y and z velocity components, e is the total energy of the gas per unit volume,γ is the specific heats, and N is the power density of the source of energy released in (W/m³).
Prediction of sonic boom signature using Euler-full potential CFD with grid adaptation and shock fitting[R].

Study on the Effect of Different Rear Windscreen Angles on Aerodynamic Characteristic of the Automobile HaiTao Bao Faculty of Transportation Engineering, Huaiyin Institute of Technology, Huai’an, China bht4931530@163.com Keywords: automobile; rear windscreen angle; aerodynamic characters; CFD .
Numerical simulation of external flow field around automobile has been performed to study the effect of different headstock shape on aerodynamicdrag [1].
In this numerical simulation, the effects of compressibility can be ignored because the Mach number based on the automobile velocity is relatively small.
The turbulence model constants chosen for use in this simulation are listed in table 1.
[5] Liang Jianyong, Liang Jun, Fan Shijie& Zhang Jialin：Comparison Among k-ε Turbulence Models in CFD Analysis on Flow Field Around a Car Automotive Engineering , Vol. 30 (2008) , p. 847 [6] Fluent Inc.

Simulation and Experiment of Residence Time Distribution in Short-Contact Cyclone Reactors Zhang Yu-chun1,a, Zou Wei 2,b 1School of Agricultral and Food Engineering, Shandong University of Technology, Zibo, Shandong, 255049, China 2Metrological Research Centre, Sinopec Gas Company, Wuhan, Hubei, 430040, China azhangyuchun29@163.com, bzouwei2006@163.com Keywords: short-contact cyclone reactor, component concentration, residence time distribution, tracer method, CFD.
Numerical simulation techniques are one way of modeling for such systems.
Computational fluid dynamics (CFD) tools are becoming powerful and popular to conduct reactor design and diagnosis [4,5].
In one word, the simulated results fit the experimental data well, the error is small, it shows that the simulation method could predict the residence time distribution effectively, the simulated results are reliable and accurate.
Contours of the component concentrations on different planes predicted by simulation.

The simulation results were validated by the trials.
In the present work, a 3-D simulation model of AFM process has been developed and a medium flow through the fracture plate workpiece in the process cycle has been evaluated using CFD approach.
Media properties used in simulation work.
Simulation results on finishing of fracture plate.
[6] Wan, S., Ang, Y.J., Sato, T., Lim, G.C., “Process modeling and CFD simulation of two-way abrasive flow machining,” International Journal Advance Manufacturing Technology, vol. 71, pp. 1077-1086, 2014

Large Eddy Simulation of the Gas–Liquid Flow in a Cylindrical Cross-Sectioned Bubble Column W.L.
Numerical Results The simulation example is shown schematically in Figure 1.
Large eddy simulation of con>ned swirling flow.
Computational fluid dynamics (CFD) analysis of multiphase chemical reactors.
Dynamic simulation of dispersed gas–liquid two-phase flow using a discrete bubble model.