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分析了多孔介质强迫流动传热中粘性耗散的特点，建立了考虑粘性耗散作用的平行平板间多孔介质强迫流动传热模型，并进行了数值计算．考察了雷诺数Ｒｅ、修正的埃克特数Ｅｃ′、板间距与颗粒直径比Ｒｈ以及不同截面位置ｘ／ｈ处的影响．计算结果表明，多孔介质中粘性耗散的作用远大于不填充多孔介质时的粘性耗散的作用，并随着Ｒｅ、Ｅｃ′、Ｒｈ及ｘ／ｈ的增大而增大，有可能大到不再容许忽略的程度
The characteristics of viscous dissipation in forced flow and heat transfer in porous media were analyzed. A forced flow heat transfer model of porous media between parallel plates considering viscous dissipation was established and numerically calculated. The Reynolds number Re, the corrected Ecr number Ec ’, the plate spacing to particle diameter ratio Rh, and the influence of different cross-sectional positions x / h were examined. The calculated results show that the viscous dissipative effect in porous media is far greater than that of viscous dissipation in porous media and increases with the increase of Re, Ec ’, Rh and x / h, which may be as large as No longer allow to ignore the extent