...定性；冰盖糙率；热交换系数 [gap=1339]Key words：ice processes; mathematical model; parameters uncertainty; ice roughness; coefficient of heat exchange ...
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The experiment results show that the threshold velocity is affected by the ratio of roughness coefficient of ice cover and bed.
试验表明：冰盖下泥沙起动流速与冰盖及槽底糙率的相对比值有关。
A numerical simulation approach taking the wall roughness effect into account was presented to simulate the glaze ice accretion.
提出了一种可考虑粗糙度影响的瘤状冰结冰过程数值模拟方法。
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