近年来填充床反应器CFD数学模型韵几个研究重点是动量交换系数、毛细管压力以及床层空隙率的非均匀分布性。
Several of the focuses of CFD model in packed-bed reactors were studied, namely, the momentum exchange coefficient, the capillary pressure and the void fraction.
松散体导热系数受各种因素的影响，但对于一个给定的松散体，其导热系数主要与空隙率有关。
Thermal conductivity of crashed minerals is affected by different factors, but for a given crashed material, its thermal conductivity is mainly related with the gap rate.
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