Convection Heat Transfer of Fluids Laminar Forced Internal Flow inside a Tube Inserted with Porous Medium under Constant Heat Fluz Condition
In this paper, the Brinkman---Forchheime extended Darcy model was used to analyze the two-dimensional laminar flow across an isothermal plate in porous medium. The mass conservation equation, momentum conservation equations were established. The equations were simplified by analyzing the order of magnitude of each item. The formulas of the velocity distributions, boundary layer thickness have been obtained approximately by use of the integration method. It was analogized to the internal laminar forced flow and heat transfer inside a tube inserted with porous medium under the condition of constant wall heat flux when the tube diameter and the velocity are relatively bigger. The temperature distribution and the convection heat transfer coefficient have been obtained. And the effective Nusselt Number defined with the fluids effective thermal conductivity is constant.
Porous medium Laminar forced flow inside a circular tube Convection heat transfer coefficient Effective Nusselt number
Wei Luan Dongwen Zhang
State Nuclear Electric Power Planning Design& Research Institute,Beijing,China
国际会议
The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)
南京
英文
2196-2201
2009-11-06（万方平台首次上网日期，不代表论文的发表时间）