② 流型判据——雷诺准数(Renault number) 滞流和湍流的本质区别是 ( ) A.湍流流速大于滞流流速 B.流道截面大时为湍流,截面小的为滞流 C.滞流时Re数小于湍流时Re数 ...
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结果表明,主要相似准数为雷诺数(动力相似准数)。
The results show that the principal similarity criterion is Reynolds(criterion of dynamic similarity).
对雷诺数、湍流雷诺数以及哈特曼准数的定量计算结果表明,哈特曼准数较好地表征了电磁力对铝液湍流运动的抑制作用。
The quantitatively calculated results of Hartman number, Reynolds number and the turbulent Reynolds number show that Hartman number expresses well the function that electromagnetic force i.
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