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Verification and validation (V&V) are the primary means to assess the accuracy and reliability in computational fluid dynamics (CFD) simulation.
Finally, some suggestions are given about V&V of the detonation CFD model.
Based on the physical modeling, the computational method as well as the numerical simulation described in this article, we introduce the CFD of detonation and a basic model of V&V.
Relying on the software LAD2D [6] and a large number of benchmark testing models, the V&V of the multi-medium CFD detonation model is provided.
The technology of correctness verification and the methods of the confidence validation in the detonation CFD model are given. 3.

Sensitivity Analysis of the Air Flow Inside a Single Cylinder Engine for Different Turbulence Models Using CFD Felipe Grossi L.
However, when modeling internal combustion engines using CFD, the turbulence model choice is always a relevant problem.
Considering all the studies that are being developed in this field, the present paper aims to analyze different aspects of the cold flow inside an internal combustion engine chamber, using CFD simulations.
Therefore, the simulation starts at the 330º, the TDC occurs at 720º and the simulation ends at 1080º.
“A Rapid Cfd Simulation For Internal Combustion Engines”, Sae Paper 1999-01-1185, 1999

3D numerical simulation of the airflow in a Pneumatic Splicer Xiao Xing1, a and Guoming Ye1,b 1School of Mechanical Engineering, Donghua University,Shanghai, 201620,China alilyxingxiao@hotmail.com, bygm@dhu.edu.cn Key words:pneumatic splicer ; splicing chamber ; numerical simulation ; air flows Abstract.
Three-dimensional numerical simulation is conducted and standard K-ε turbulence model is used.
This work also shows that CFD technique can provide a better understanding of the behavior of the high speed air flow in the air splicing chamber.
Jianheng Zhou and Pengfei Qin [2] applied the Computational Fluid Dynamics (CFD) technology to the design of the pneumatic splicer.
Therefore, the standard K-ε model is only appropriate for the simulation of fully turbulent flow.

Critical flow characteristic such as velocity is the focus of simulations.
The CFD enables the engineer to better, improved and faster design. 2.
The sketch of CFD model is shown in the Fig 1(a, b, c).
For the simulation of dynamics of flow the RSM-7 Equation model was applied.
The sketch of boundaries of the CFD model is shown in Fig. 2.

Especially since the high speed computer appeared, study of numerical simulation appears more realistic.
This article mainly discuss the application of CFD software FLUENT in goaf gas seepage field.
CFD software can be regarded as numerical simulation for the flow under the control of a basic equation (mass conservation equation, momentum conservation equation, energy conservation equation, components mass conservation equation).
The simulation for basic situation model.
While CFD simulation can help to formulate rational test plan, which could reduce the manpower investment in the test, and revision useful information for designing scheme and the formulation of new methods.

The Laminar Flow Simulation of Variable Diameter GFRP Pipe with Transition Region Yaxuan Wang 1, a, Jing Ji2, b and Shu Zhang 2, c 1College of Engineering Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, 163319, China 2College of Civil Architecture Engineering Northeast Petroleum University, Daqing, Heilongjiang, 163318, China aE-mail:jijing1977@163.com, bJlqjjdoudou@163.com , cdqzhangshu@126.com Keywords: GFRP, FLOTRAN CFD, Laminar flow, Diversion pipes, ANSYS finite element.
A typical analysis of FLOTRAN CFD includes seven steps: ①The area of problem analysis must be clear; ②The state of the fluid should be defined; ③The finite element analysis grid should be generated accurately; ④Boundary conditions should be exerted on the model; ⑤ The analysis parameters of FLOTRAN CFD are set; ⑥Solving; Reading Results in Post-processing.
The analysis type is designated for FLOTRAN CFD.
Fig.3 Boundary constraint of finite element model for P-2 pipe Analysis of Finite Element Results Figure 4 shows the velocity distribution of four diversion pipes gotten by the finite element simulation.
Conclusions It adopts the FLOTRAN CFD model in ANSYS finite element software to analyze laminar flow of four diversion pipes with transition zone, introduces the process of the finite element analysis in detail, and obtains velocity distributions of four diversion pipes.

Quantitative Analysis of Gas Flow in a Planar SOFC Kai Wang1, a, *Yisheng Zhang1,b and Jian Li1,c 1 State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China awangkai1012@live.cn, bzhangys@mail.hust.edu.cn, clijian@hust.edu.cn Keywords: planar SOFC; CFD; gas flow; numerical simulation; quantitative analysis Abstract: Computational Fluid Dynamics (CFD) method was adopted to establish the three dimensional model for cathode gas channel of planar SOFC and simulate the gas flow in the channel of a single cell.
Valery et al [5] describe a 3-D CFD model of the anode gas channel in a planar SOFC with internal reforming.
Results and Discussion Simulation Results.
Numerical simulation was performed based on the model of the cathode gas channel of the planar single cell.
Fig.5 shows the velocity distribution diagram obtained by simulation of gas leak.

The purpose of this study was to develop a computed fluid dynamic (CFD) simulation model to analysis the effects of human gait on air distribution in proposed contagious isolation tent ward.
CFD dynamical simulation and gait experiment of contagious isolation tent ward Based on the CFD mesh model of contagious isolation tent ward, the static and dynamical ventilation simulations were implemented.
Computed fluid dynamical simulation was implemented through a commercial available CFD simulation software Fluent 6.3 (Fluent Inc., USA).
Two methods, including experimental measurement and computational fluid dynamics (CFD) simulation, were commonly adopted in these studies.
Because experimental measurement required a lot of time and expense, CFD simulation became one of the most economic and efficient tools to investigate indoor airflow distributions.

The simulation of the three dimensional vessel with interceptor is also included, and the effect is discussed.
Fig.2 Experimental ship model Simulation of the 3 dimensional ship without interceptor The ship’ length, width and draught are 65, 8.3 and 2.7 meters.
Conclusion The CFD code FLUENT is used in this paper, and the resistance of the ship with and without interceptor are calculated.
The numerical result is compared with the experimental data, and the comparison indicates the validity and reliability of the CFD code used for the simulation of the viscous flow field.
Hydrodynamics analysis of interceptors with CFD methods[C].

Humidity Distribution Simulation of Passenger Vehicle Cabin Liping XIANG School of Mining and Safety Engineering, Hunan University of Science & Technology,Xiangtan, Hunan, 411201,Chian elephantxlp@163.com Key words: Numerical simulation, Passenger cabin, Humidity distribution Abstract.
An efficient computational fluid dynamics(CFD) technique is using the “realisable” model.
Many researches on the fluid and heat transfer characteristics of passenger compartments have been carried out using CFD.
Basically, the numerical model is based on a commercial CFD code, Fluent[5].
Numerical simulation of the flow in a passenger compartment and evaluation of the thermal comfort of the occupants.