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It is solved numerically using CFD (Computational Fluid Dynamics) codes in the Ansys Fluent software.
The results of solving the SST Transition model are verified with experimental measurements, and other selected types of models based on the direct simulation of large vortices (LES (Large eddy simulation) method) are subsequently tested.
Sousa, Experimental and numerical simulation of flow around two-dimensional hills, J.
Harms, CFD investigation of the atmospheric boundary layer under different thermal stability conditions, J.
Journal of Mathematics and Computers in Simulation. 8 (2014) 135-140

This paper is based on the method of volume of fluid function (VOF) and founds numerical wave tank similar to real sea condition using business software CFD and its function of second development, proceeds numerical simulation of linear wave and second-order stokes and compares them with the theoretical value.
In this way, we could realize the accurate simulation of the waves [8].
Graph 1 The size of the three-dimensional Numerical Water Tank(NWT) Results: Simulation of Linear Wave.
After Fluent simulation, visibility processing of the results is performed with the aid of data-analyzing software Tecplot.
Graph 4 Wave surface variation where x=50m It can be observed from graph 4 that the simulation of second-order stokes wave is very close to theoretical value and simulation result of linear wave.

Numerical simulation based on k-e turbulence model in the same flow rate was taken using the platform.
At present, the rapid development of computational fluid dynamics (CFD) provides a strong research method to fan’s optimization design, and the widely use in engineering plays a more and more important role in saving money and shortening development cycle[1].
The general CFD analysis software is highly professional.
This is because the simulation has neglected parts of mechanical loss caused by bearing transimission, and the characteristics of numerical simulation also led to the result.
So it is very appropriate to research the fan with the simulation method.

Simulation results show that, water fluctuation and energy dissipation of round-flow emitter in vibration mode are better than that of constant pressure.
Application of CFD (Computer Fluid Dynamics) software FLUENT to study the relationship between flux and pressure under vibration pressure,using user-defined functions UDF to realize the boundary condition of vibration pressure, which can provide reference and basis for the selection of vibration parameters.
It is an assumption that there is no interaction between the variable factors.We design anorthogonal test table that each vibration mode consistsof 9 groups simulation program, as shown in Table 1.
Flow Field Numerical Simulation.3D model of the round-flow emitter is designed by means of Pro/E.
Fig.3:Outlet flow value of round-flow emitter under the sine vibration mode 1 simulation program.

A three-dimensional CFD model has been implemented to simulate temperature field, material flow, and microstructural aspects in an Eulerian framework.
In the present investigation, material flow, temperature distribution and recrystallization phenomena in FSW have been simulated by a CFD model in an Eulerian framework.
Shercliff, 3-Dimensional CFD modelling of flow round a threaded friction stir welding tool profile, J Mater Process Tech 169 (2005) 320–327
Khraisheh, Modelling of Friction Stir Processing Using 3D CFD Analysis, Int J Mater Form 2 (2009) 315–318
Debroy, Numerical Simulation of Three-Dimensional Heat Transfer and Plastic Flow During Friction Stir Welding, Metall Mater Trans A 37 (2006) 1247-1259

Computational fluid dynamics (CFD) is widely used to solve continuum scale equations.
CFD enables us to qualitatively and quantitatively predict the fluid flows through mathematical modeling and numerical methods.
With regard to MNP based targeted drug delivery, CFD has been combined with in vitro release profile of drug transport [45].
A number of modeling techniques such as ab initio methods, MD simulation and MC simulation are available to model the MNP structure and their properties.
They have used time dependent CFD simulations to study the salient features of MCNP deposition mechanism.

Numerical Simulation of Natural Cavitating Flow over Axisymmetric Bodies Qiankun Liu1, a and Ye Gao2, b 1, 2College of Aerospace and Civil Engineering, Harbin Engineering University Harbin, Heilongjiang, China aliuqiankun_heu@163.com, bgaoye66@126.com Keywords: Natural cavitating flow, Multiphase mixture model, Numerical simulation, Axisymmetric body Abstract.
Coupling with natural cavitaion model, a multiphase CFD method is developed and is employed to simulate supercavitating and partial cavitating flows over axisymmetric bodies using FLUENT 6.2.
Recently, more general CFD approaches had been developed to analyze the cavitating multiphase flows.
Simulations are performed on cylindrical bodies with different types of head shapes at a fixed inlet velocity V∞=10m/s.
Such a “forward facing step” flow is well known to provide significant challenges to numerical simulations.

CFD Simulation for the Resistance Performance of 1000 dwt Deep-vee Vessels on Bulbous Bow XIE Yi1, a, ZHAO Hua2, FAN Xiao-bin3, JIAN Hua-jun4 1College of Naval Architecture and Power, Naval University of Engineering, Wuhan 430033, China 2Qingdao Branch of Naval Aeronautical and Astronautical University, Qingdao 266041, China 3Department of armament, Unit No. 92692, Zhanjiang 524064, China 4Unit No. 92001, Qindao 266003, China a datou-1977@163.com Key words: Deep-Vee vessels, resistance, bulbous bow, CFD Abstract: Resistance influence factors of bulbous bow are analyzed with three 1000dwt displacement types Deep-vee forms provided.
Numerical simulation Governing Equations and Computational Model.
As can be found from figures 2, the numerical results of total resistance show a fair agreement with experimental data at numerical simulation velocity range.
From the numerical simulation velocity range it concluded that the characteristics of resistance show well.
Numerical simulation of free ship model towed in still water.

Computational Fluid Dynamics (CFD) was used to analysis flow state and sine camber of tube influence on the heat transfer and flow.
This paper applied computational fluid dynamics (CFD) technology in research of convective heat transfer and flow resistance characteristics in sinusoidal corrugated tube[1].
Fluent, the commercial software of CFD was used to simulate the convective heat transfer and flow resistance characteristic around sinusoidal corrugated tube with different sine camber e.
Numerical simulation and the theoretical analysis with field synergy principle indicate that the effect of field synergy is poor in the smooth tube, which is opposite to that in sinusoidal corrugated tube.

Numerical simulation. lift drag ratio.
In this article, the NACA0012 foil whose performance was calculated by CFD method was chose as a study object.
And the validity of the CFD method was proved by contrasting the calculation results with the experiments.
This paper is related to numerical simulation of the attached surface layer suction phenomenon.
Liang, R Bohning, Numerical simulation of shock wave/turbulent boundary layer interaction with passive cavity [J].