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In this study, numerical simulation using computational fluid dynamics (CFD) code was conducted to verify the heat transfer characteristics of pin fins.
The boundary conditions of the solution domain have been clearly defined and matched the heat transfer textbook [1-3] to verify the accuracy of CFD simulation and for carrying out the accurate solutions.
Fig. 1 Schematic of pin fin with graphical Fig. 2 Geometric model for CFD simulation and fin efficiency temperature distribution of the fin Results and Discussion The geometric model for numerical simulation and the distribution of the fin are shown in Fig. 2.
To validate the accuracy of CFD simulation results, the preliminary validation was conducted under different fin length (i.e. different equivalent length) comparing to the curve from heat transfer handbook.
Comparison between CFD simulation and graphical curve obtained from heat transfer handbook was displayed in Fig. 3.

Hossainpour and Binesh [3] highlighted the prediction of droplet spray models in a CFD code.
The numerical study on diesel engine simulation with respect to injection timing and the air boost pressure was carried out by Jayashankara et al. [7] using commercial CFD code.
From the CFD simulation, they observed that increase in cylinder pressure, cylinder temperature and NOx emissions results from advancing the injection timing.
The droplet parameters are analyzed from the simulation.
The in-cylinder averaged pressure during the non-firing mode of simulation is also shown in Fig. 4.

Simulation of viscous flow around surface ship using ANSYS-Fluent CFD code Shu-ling CHEN1,a and Song-lin YANG1,b 1School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China achen_shu_ling@hotmail.com, bysl560516@vip.163.com Keywords: Hydrodynamic characters, Wigley hull, Numerical simulation.
Numerical Models FLUENT CFD code.
This is a general-purposed CFD code that has been applied to a broad range of disciplines.
The mesh can consist of elements in shapes such as quadrilaterals and triangles for 2-D simulations and hexahedra, tetrahedra, prisms and pyramids for 3-D simulations.
The ANSYS CFD-Post software is used to post-process its results in several formats including images and flow animations.

Simulation Supersonic Steam Flow in a Converging–diverging Nozzle Using Different State Equations Zhou Libo1, a, Zhou Minghui2,b * 1 Hunan city university,China 2Hunan University of Science and Technology,China a 78876252@qq.com, b 106050931@qq.com * Corresponding author : Zhou Minghui (106050931@qq.com) Keywords: IAPWS IF97, Ideal gas, Supersonic steam, CFD Abstract.
This paper will providing fundamental basis for SE choosing in supersonic steam simulation field.
Two type of SE are selected in this paper: ideal gas model and IAPWS IF97 real gas model[6~7] and CFD software ANSYS CFX 12.0 is used.
CFD analysis of ejector in a combined ejector cooling system, International Journal of Refrigeration, 28, (2005), 1092–1101
Numerical simulation on non-equilibrium spontaneous condensation in supersonic steam flow.

Thirdly, the fluid structure interaction simulation model is simplified to the structure simulation model, by adopting shell 181 element and using a pressure acting on the workpiece directly instead of the CFD model.
Some simulations about the forming process are given in section 3, including fluid structure interaction simulation and structure simulation.
Then, about WJ, we use a pressure acting on the workpiece directly instead of the CFD model.
WJ was modeled and simulated with a CFD approach, while for the material flow in the workpiece a FEA was used.
Then, the fluid structure interaction simulation model was simplified to the structure simulation model, by adopting shell 181 element and using a pressure acting on the workpiece directly instead of the CFD model.

The numerical optimization method was used to analyze the influence of combined variation of two angles on the external flow field and the CD of the passenger car, in which we combined genetic algorithm with the CFD simulation to reduce aerodynamic drag by seeking the relatively optimal combination of two parameters above.
With CFD method we can acquire the diagrams of total pressure and streamline distribution in the flow fields of the models which has been proved to be reliable because of the mature development of simulation of flow field around automobile and pipeline flow.
CFD numerical simulation was applied to get the CD and the diagrams of total pressure and streamline distribution in the flow fields of the MIRA model of 10 angles combinations.
Computational fluid dynamics analysis: CFD software principle and application.
Numerical Simulation of Flow Field around Car[J].

A numerical study using computational fluid dynamics (CFD) under air/water two-phase flow condition without thermal transmission is carried out utilizing the commercial CFD code CFX.
Hybrid meshes of tetrahedral and hexahedral volume elements were generated for CFD model.
CFD analysis Computation regions and boundary conditions.
Part 1: Computational fluid dynamics (CFD) simulations.
Kang, CFD analysis for full vessel upper plenum in Maanshan Nuclear Power Plant, Nucl.

It focused the effect on the numerical simulation for bending-span ratio.
In order to solve this problem, based on numerical wind tunnel method has the advantages of low cost, fast speed, the results collecting more comprehensive advantages, this paper using CFD knowledge, using the FLUENT software, using RNG turbulence model, simulating a landform, have numerical simulation of the average wind pressure coefficient of the rhombic plane saddle roof.
CFD NUMERICAL SIMULATION Mathematical models (Control equations ).Control equation In Reference(Wang2004).
In this paper, the numerical simulation selected RNG- model.
[4] Wang, F.J..Computational fluid dynamics analysis of CFD software theory and application [ M].

Numerical Simulation of Rocket Nozzle Srinivas G1, Potti Srinivasa Rao2 1Department of Aeronautical & Automobile Engineering, MIT- Manipal University, Udupi, Karnataka, INDIA - 576104. 2Department of Humanities & Management Engineering, MIT- Manipal University, Udupi, Karnataka, INDIA – 576104. 1srinivasle06@gmail.com, 2srinivasapotty@yahoo.co.in Keywords: Nozzle, Pressure distribution, CFD, Inlet , Exit.
After the simulation the results revealed that the divergence angle varies the mach number and other performance parameters also varies.
[3] Nathan Spotts et al “A CFD analysis of compressible flow through convergent-conical nozzles” American Institute of Aeronautics and Astronautics.
[4] Pandey,K.M.; Singh, A.P.; CFD Analysis of Conical Nozzle for Mach 3 at Various Angles of Divergence with Fluent Software, International Journal of Chemical Engineering and Applications, Vol. 1, No. 2, August 2010, ISSN: 2010-0221.
Srinivasa Master of Science Aerospace Engineering report “CFD Modeling and Analysis of an Arc-jet facility using ANSYS Fluent” May 2012.

Such numerical simulation technology is called computational fluid dynamics (CFD) (Fig. 2) [6].
However, in recent years, the CFD technology has been applied to the simulation of building environments.
Fig. 6 is a simplified CFD simulation model in the district.
Chan, CFD analysis and energy simulation of a gymnasium.
Ye, CFD Simulation Research on Residential Indoor Air Quality, Sci.