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首页> 外文期刊>JP journal of heat and mass transfer >EFFECT OF SURFACE RADIATION ON FULLY DEVELOPED FORCED CONVECTION BETWEEN TWO PARALLEL PLATES
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EFFECT OF SURFACE RADIATION ON FULLY DEVELOPED FORCED CONVECTION BETWEEN TWO PARALLEL PLATES

机译：表面辐射对两个平行平板完全展开的强迫对流的影响

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摘要

A numerical solution for fully developed forced convection in a channel bounded by one isothermal and one adiabatic plate that takes surface radiation into account is presented. The solution is bounded by two pure forced convection solutions: that corresponding to the case of one isothermally heated wall and one adiabatic wall and that corresponding to two isothermal walls. The effects of the radiation number on the fluid, mixed-mean, and adiabatic wall temperatures as well as the Nusselt numbers of the isothermal and externally adiabatic walls are investigated. The radiation number at which symmetric heating appears due to surface radiation to produce a maximum Nusselt number and mixed-mean temperature is determined. In addition, it is shown that the maximum contribution from radiation to the total heat transfer does not exceed 50%. The sill value of the radiation number at which the radiation effect can be neglected is presented.
机译：提出了一种在由一个等温和一个绝热板界定的通道中充分发展的强迫对流的数值解决方案，该方法考虑了表面辐射。该解由两个纯强制对流解界定：对应于一个等温壁和一个绝热壁的情况，​​以及对应于两个等温壁的情况。研究了辐射数对流体，混合平均和绝热壁温度以及等温壁和外部绝热壁的Nusselt数的影响。确定由于表面辐射而产生对称加热以产生最大努塞尔特数的辐射数，并确定混合平均温度。另外，显示出辐射对总热传递的最大贡献不超过50％。给出了可以忽略辐射效应的辐射数的下限值。

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