Second Law Analysis in Convective Heat and Mass Transfer
Second Law Analysis in Convective Heat and Mass Transfer
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DOI：
10.3390/e8010001
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发表时间：
2006-02
期刊：
影响因子：
2.7
通讯作者：
M. Magherbi;H. Abbassi;Nejib Hidouri;A. Brahim
中科院分区：
文献类型：
--
作者：
M. Magherbi;H. Abbassi;Nejib Hidouri;A. Brahim
本文采用控制体积有限元方法，通过数值求解质量、动量、组分守恒方程和能量平衡方程，数值确定了具有热质扩散壁的倾斜封闭空间中层流双扩散对流的稳态换热、传质和流体摩擦产生的熵。考察了倾角、热Grashof数和浮力比对总熵产生的影响。讨论了在固定的热Grashof数下，在三个倾角下，由于换热、传质和流体摩擦引起的不可逆局部化。
This paper reports the numerical determination of the entropy generation due to heat transfer, mass transfer and fluid friction in steady state for laminar double diffusive convection, in an inclined enclosure with heat and mass diffusive walls, by solving numerically the mass, momentum, species conservation and energy balance equations, using a Control Volume Finite-Element Method. The influences of the inclination angle, the thermal Grashof number and the buoyancy ratio on total entropy generation were investigated. The irreversibilities localization due to heat transfer, mass transfer and fluid friction is discussed for three inclination angles at a fixed thermal Grashof number.