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首页> 外文OA文献 >Comments on “Flow, thermal, and entropy generation characteristics inside a porous channel with viscous dissipation” by S. Mahmud and R.A. Fraser [Int. J. Thermal Sciences 44 (2005) 21–32]
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Comments on “Flow, thermal, and entropy generation characteristics inside a porous channel with viscous dissipation” by S. Mahmud and R.A. Fraser [Int. J. Thermal Sciences 44 (2005) 21–32]

机译：S. Mahmud和R.A.对“具有粘性耗散的多孔通道内的流动，热和熵产生特性”的评论。弗雷泽[Int。 J.热科学44（2005）21–32]

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Hoomen, Merrikh and Ejlali presents comment on the paper on \u27Flow, thermal, and entropy generation characteristics inside a porous channel with viscous dissipation\u27 by S. Mahmud and R.A. Fraser. The paper presents closed form solutions to the velocity and temperature distributions that would be very useful for checking numerical computations. The authors have applied the fluid thermal conductivity kf in all of the equations, that should be replaced by the effective thermal conductivity. They have presented the temperature distribution and the Nusselt number as a function of the Darcy number only, inspite of the fact that Re, Pr, and Ec will affect the temperature profile. The authors have applied a clear-fluid compatible term in the entropy production term that has not been already considered in the thermal energy equation. The reliability of the numerical results is questionable though the authors have applied a previously tested numerical scheme.
机译：Hoomen，Merrikh和Ejlali在S. Mahmud和R.A的论文中对粘滞耗散的多孔通道内的流动，热和熵产生特性发表了评论。弗雷泽。本文提出了速度和温度分布的封闭形式解决方案，这对于检查数值计算将非常有用。作者已将流体导热系数kf应用于所有方程式，应将其替换为有效导热系数。尽管Re，Pr和Ec会影响温度曲线，但他们仅将温度分布和Nusselt数表示为Darcy数的函数。作者已经在熵产生项中应用了透明流体相容项，而热能方程中尚未考虑该项。尽管作者采用了先前测试过的数值方案，但数值结果的可靠性值得怀疑。

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