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Introduction This design intends to adopt the research methods which is a combination of theoretical derivation, model analysis and software integrated simulation phase.
The analysis of gas-solid coupling of wind turbine blades In this study, the weak coupling partition solution method is adopted, respectively, computational fluid dynamics (CFD) and computational structural mechanics equations (CSD) equation are solved once in each time.
NS equation solving aerodynamic is simulated by CFD, and is simulated by the dynamic response of structures for joint solving calculations .Structure and flow fields exchange information with each other through the intermediate data platform..
Challenges in Simulation of Aerodynamics, Hydrodynamics and Mooring-Line Dynamics of Floating Offshore Wind Turbines[C],Presented at the 21st International Offshore and Polar Engineering Conference, 19-24 June 2011, Maui, Hawaii
Dynamic overset CFD simulations of wind turbine aerodynamic[J], Renewable Energy 37 (2012) :285-298

Thanks to more and more sophisticated CFD tools, the developing of new sails becomes much easier than 30 years ago.
Boundary Conditions And Numerical Simulation Model The calculation selected four boundaries: inlet, outlet, open and body.
The results of numerical calculation and wind tunnel test The numerical calculation for the aerodynamics of the ellipse wing sail is based on the numerical calculation model stated in section 1. table 3,4 shows the lift coefficient and drag efficient of the ellipse wing sail got by CFD and wind tunnel test.
In this connection, the developed CFD technology today provides a convenient method for developing novel sails in sail assist navigation research.
Beijing China [6]Ignazio Maria Viola(2009) Downwind sail aerodynamics: A CFD investigation with high grid resolution.

Turbulence is one of the key CFD models applied in numerical compartment fire modelling.
However, there exists three different main forms of turbulent simulations that calculate and/or model large and small eddies – Direct Numerical Simulation (DNS), Reynolds-Averaged Navier-Stokes (RANS) and Large Eddy Simulation (LES).
Turbulence models in CFD.
Modelling and Simulation in Engineering, Article ID 781252, 16 pages
Toward thelarge-eddy simulation of compressible turbulent flows.

Numerical Study on Heat Transfer Enhancement in a Circular Dimpled Surface by using Inline and Staggered Pattern at Laminar Flow Regimes Ravikumar T S1, a, Seralathan S2, b, *, Micha Premkumar T3, c and Guntamadugu Hemanth Kumar4 1,2,3,4 Department of Mechanical Engineering, Hindustan Institute of Technology and Science Hindustan University, Padur 603 103, Tamil Nadu, India aravikumar@hindustanuniv.ac.in, bsiva.seralathan@gmail.com, ctmichamech@gmail.com Keywords: CFD, laminar flow, circular, dimpled surface, inline pattern, staggered pattern.
Unstructured tetrahedral mesh with prism shaped cells near the walls are generated by using ANSYS ICEM CFD 13.0© with number of elements 458251, 808866 and 853244 for flat plate, plate with circular dimple – inline pattern and plate with circular dimple - staggered pattern respectively.
The numerical simulations are carried out with ANSYS Fluent 13.0©.
[11] Yue Tzu Yang, Peng Jen Chen, Numerical simulation of fluid flow and heat transfer characteristics in channel with v corrugated plates, Heat Mass Transfer, 46 (2010) 437-445
[12] Akihiko Nakayama, Modeling and simulation of turbulent flows over complex and natural boundary, Proceedings of the 37th National and 4th International Conference on Fluid Mechanics and Fluid Power, IIT Madras, Chennai, India, Paper ID: FMFP10-KN-02 (2010) 10 pages

Figure 4 1/4 hot end box computational model FLUENT is a program based on finite volume method(FVM) which has been one of the most extensively used CFD programs.
The programs is widely applied in engineering simulation, includes many turbulence and heat transfer models.
The waste gas flow inside the hot end box is rather complicate and is typical turbulence, the governing equations for this simulation are: continuity equation, momentum equation and energy equation.
Computational results analysis 1 Temperature field distribution The simulation results of hot end box with/without internal heat conducting structure under the same boundary settings are achieved.
Optimisation of catalytic converter gas flow distribution by CFD prediction[R].

Sarkar(2008)[6] studied downburst outflow velocity characteristics by conducting wind tunnel experiments and CFD simulations, and two empirical equations corresponding to maximum radial velocity distribution and boundary layer development, respectively, were proposed.
Holmes, Numerical Simulation of Thunderstorm downdrafts, Journal of Wind Engineering and Applied Aerodynamics. 41-44(1992) 2817-2825
[3] M.T.Chay, F.Albermani, R.Wilson, Numerical and Analytical Simulation of Downburst Wind Loads, Journal of Wind Engineering and Industrial Aerodynamics. 28(2006) 240-254
[5] L.Chen, C.W.Letchford, Numerical Simulation of Extreme Winds from Thunderstorm Downbursts, Journal of Wind Engineering and Industrial Aerodynamics. 95(2007) 977-990
[9] Chao Li, Q.S.Li, Y.Q.Xiao, J.P.Ou, A Revised Empirical Model and CFD Simulations for 3D Axisymmetric Steady-state Flows of Downbursts and Impinging Jets, Journal of Wind Engineering and Industrial Aerodynamics. 102(2012) 48-60

CFD software was used to analyse the effect of mixed convective heat transfer in different air speed on interior helium temperature of high-altitude-cruising stratospheric balloon.
The internal natural convective heat transfer is in a large enclosed space, which was calculated by CFD software based on boussinesq hypothesis.
The internal natural convective heat transfer was calculated by CFD software automatically.
Thermal performance analysis of a high-altitude-cruising airship in summer solstice has been carried out by CFD analysis software.
A Study of Thermal Simulation of Stratospheric Airships[J].

Numerical Simulation on Ventilation Effect of Train-induced Wind in Subway Weichao Yang1,a, Limin Peng1,b, Chenghua Shi1,c and Zilin Hu2,d 1 Department of Civil Engineering, Central South University, Changsha 410075, Hunan, China 2Guangzhou Metro Design and Research Institute, Guangzhou 510010, Guangdong, China aweic_yang@163.com, blmpeng@csu.edu.cn, ccsusch@163.com,d30061417@qq.com Keywords: Subway, Piston air, Ventilation, Aerodynamic effects Abstract.
Yuan and You obtained the velocity and temperature field of a subway station and the optimized ventilation mode of the subway side-platform station by using CFD simulation [8].
Simplified simulation method The vehicle geometry is simplified for the computations by neglecting surface and underside details such as doors, windshield wipers and such mechanical parts as wheels sets, bogies, and so on.
J., CFD simulation and optimization of the ventilation for subway side-platform.
P., Numerical simulation for optimizing the design of subway environmental control system, Building and Environment 37 (2002) 1139–1152

,Ltd Guangdong foshan 528300 China ahemc2011@126.com, bchenbingbing@ictsd.com.cn, cnhzcl@163.com,dzhangliangliang@ictsd.com.cn Keywords: heat pipe; simulation; icepak software; thermal design.
In order to solve the heat dissipation problem, two kinds of heat pipe heat dissipation schemes are designed, CFD software ICEPAK is used in the report to make a numerical simulation as well as a simulation analysis of the Heat pipe cooling scheme.
As the temperature increases, the failure rate of electronic equipment shows the trend of exponential growth [3], the adoption of thermal analysis software for proceeding the numerical simulation could greatly reduce design time and improve design efficiency [4].According to the thermal condition of stated conditional simulation objects, thermal analysis software uses the results of the simulation to guide product design.
Cabinet is the physical boundary for the simulation calculation, and the size of cabinet directly affects the Rayleigh number and Reynolds number given by the system.
[4]J.H.Xiang, C.L.Zhang and F.Jiang:Thermal Columnar Structure Convective Heat Transfer Process Simulation and Optimization Research [J].

The dynamics of different relief valves have been studied through bond-graph simulation technique in ref. [2, 3].
Therefore, this paper is to study the internal flow field of explosion relief valve by virtue of CFD software.
Numerical simulation was performed by software FLUENT combining homogeneous design method.
Karmakar: Simulation Modeling Practice and Theory Vol. 10 (2002), p. 51-67 [3] K.
Watton: Simulation Modelling Practice and Theory Vol. 13 (2005), p. 21–38 [4] X.D.