本文研究了在初始密度差极小的情况下由双扩散效应引起的异重流的流动特性。
A gravity current flow of double - diffusive effects has been investigated under the condition of very small density difference.
文中还评述了现有双扩散对流与结晶过程耦合的计算结果及有待进一步研究的问题。
The existing numerical results of crystal growth process coupling with double diffusive convection are also reviewed in this paper.
结果表明，糊状区中由于热溶质双扩散对流造成的密度变化是形成A偏析的根本原因。
The results showed that the density variation induced by double-diffusive convection is significant to the formation and evolution of A-segregates.
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