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STUDY ON COUPLED CONDUCTION AND CONVECTION HEAT TRANSFER BASED ON INTERNAL HEAT SOURCE YONGAN LI，YANAN GAO，MING WANG，XUELAI LIU School of Thermal Energy Engineering,Shandong Jianzhu University Jinan, 250101,China KEY WORDS:Pipe, internal heat source, conduction and convection, liquid-solid coupled, numerical simulation Abstract:A computational fluid dynamics (CFD) model is proposed to simulate numerically conjugated heat transfer process of fluid washing out solid with evenly internal heat source in the pipe.
Based on numerical simulation, the varying regularity of Nusselt number between fluid and solid wall surface is obtained and analyzed.
The SIMPLE algorithm is taken in the numerical simulation process of steady coupled heat transfer.
Therefore, in the numerical simulation process by using CFD software, the setting of physical parameters, the selection of solution method and the determining of the time step should be paid special attention.
The analysis of the calculation result When doing numerical simulation and calculation, the CFD software FLUENT was used in this paper.

Three-dimensional Wind Field Simulation on the Two Typical Roofs of the Building Shuqin Liu1 ,Zhongguo Bian1 ,Yuanbo Cai2 ,Fang Zhao2 1.
This paper mainly analyzed the basic situation of three-dimensional wind field around the buildings with the theoretical analysis and CFD numerical simulation method.
This paper presented the wind flow condition around the flat roof building and pitched roof building by Computational Fluid Dynamic (CFD) technique, including the wind energy on building roof.
In this simulation turbulent flow equation adopted standard k-e model.
Fig.7(a) Wind velocity ratio for α=0° Fig.7(b) Turbulence intensity for α=0° 3 Conclusions CFD simulations for the cuboids buildings have been performed, and analyzed the wind energy of building rooftop at different roofs and different wind directions.

Results and discussion A simplified Siemens reactor is used in the present simulation study.
The computational domain was divided by hexahedral elements using ICEM CFD 14.0.
Four gas phase reaction mechanisms (Ho’s detailed gas phase reaction mechanism, Cavallotti and Masis’ global, radical and disilane gas phase reaction mechanisms) were employed in the computational simulations using the commercial CFD software Ansys Fluent.
Kinetics of SiHCl3 Chemical Vapor Deposition and Fluid Dynamic Simulations.
Modeling and simulation of silicon epitaxial growth in Siemens CVD reactor.

A paraboloid-shaped computational domain was prepared for CFD analysis comprising two local refinement regions as shown in Figure 6.
The results of steady-state CFD analysis were then mapped for a coupled thermo-structural simulation to study the structural response of the wing to aerothermal loads.
The simulation was performed for a duration of 120 s using ANSYS Mechanical.
The results of CFD simulation were used in transient thermal analysis where the temperature distribution and total heat flux in the structure were analysed.
Zhang, Numerical simulation of hypersonic flow around an aerospace plane by Parallel RANS based CFD, Procedia Engineering, Vol. 61, (2013)

Bambang Basuno 2, b, and Abobaker Mohammed Alakashi3, c 1, 2, 3 Faculty of Mechanical and Manufacturing Engineering,Tun Hussein Onn University of Malaysia (UTHM), Parit Raja, Batu Pahat, 86400 Johor, Malaysia ahassan.elkamel@gmail.com, b Bambangb@uthm.edu.my, c Abobaker.alakashi@gmail.com, Keywords: Fluent software, missile, CFD, Compressible Flow Analysis Abstract.
Treating the flow problem in view as two dimensional flow case, since their result will be used as a comparison purposes with the CFD code which currently under development.
This software is well known as a powerful and flexible general-purpose computational fluid dynamics (CFD) package used for engineering simulations of all levels of complexity.
As part of CFD Code development based on Cell Centered Finite Volume scheme which is curently carried out in the present work and the purpose of comparison with Fluent result.
Conclusion The result in term of Mach number and the model of mesh flow domain as presented in this paper can be used as a guide line in developing the CFD code by use different numerical scheme which may not be the same as used in the Fluent software.

Numerical simulation of the natural ventilation in workshop with different air inlet openings Yaxin Su1, a, Xin Wan2,b 1 School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China 2 Wuxi City College of Vocational Technology, Wuxi 214011, China asuyx@dhu.edu.cn , bwanxin840207@163.com Keywords: natural ventilation; industrial workshop; numerical simulation; air inlet opening Abstract.
With the development of numerical simulation methods, computational fluid dynamic (CFD) modeling is widely used by many authors to study fully the natural ventilation process.
In this paper, the authors numerically investigated the natural ventilation in a workshop with heat sources based on CFD method.
Sketch of workshop Numerical model and simulation method.
Realizable k−ε turbulent model was selected for the CFD calculation after several trial calculations and comparison to related experimental data.

Numerical Methods Multiphase Modeling The commercial CFD software FLUENT is used to model the gas-liquid two-phase flow regimes.
Several runs of simulation had been performed by varying the cells density.
Simulation of Oil-Gasoil Vapour Flow This section reported the 3D simulations of slug transition for two-phase oil-gasoil vapour flow in horizontal pipe.
Holdo, "Modelling two-phase flows using CFD," Applied Energy, vol. 53, pp. 299-314, 1996
Nasif, "Simulation of two phase oil-gas flow in pipeline," APRN Jour.

A coupled CFD/6 DOF is designed to compute the orientation and trajectory of the airdrop model.
Fig.1 also shows the CFD mesh on the airdrop model surface used in this numerical simulition.
Fig.4 shows the flow chart of the CFD/6 DOF coupling.
A coupled CFD/6 DOF is designed to compute the orientation and trajectory of the airdrop model.
Simulation the Flows About Cargo Containers Used During Parachute Airdrop Operations .

Numerical Technique Numerical technique usually shortened as Computational Fluid Dynamics (CFD is the analysis of systems linking fluid flow, heat transfer and related phenomena such as chemical reaction by means of computer-based simulation.
Likewise, motor vehicle manufacturers now routinely predict drag forces, under-bonnet air flows and the in-care situation with CFD.
(5) CFD , is the analysis of systems linking fluid flow, heat transfer and related phenomena such as chemical reaction by means of computer-based simulation.
Based on its greater ability, simulations can be run under a wider range of wind speeds that too varying the angle of attack.
Numerical simulation of flow over twisted-blade, horizontal axis wind turbine.

For numerical investigation, commercial available computational fluid dynamics CFD software GAMBIT and FLUENT are used.
The aerodynamic characteristics of VVAWT can be improved by numerical simulation using Computational Fluid Dynamic (CFD).
Simulation was done for three geometries: the Classical Savonius design, Bach-type one and Elliptical rotor.
The numerical simulations were carried out for fixed blade position representing its angular positions of, 0°, 30º, 45º, 60°, and 90º.
Sankar, “Steady and rotating computational fluid dynamics simulations of a novel vertical axis wind turbine for small-scale power generation”.