大生物数相变问题解析近似的局限性

Letters in Heat and Mass Transfer Pub Date : 1981-11-01 DOI:10.1016/0094-4548(81)90055-2

A.D. Solomon

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引用次数: 2

摘要

虽然解析近似方法很有吸引力，并且广泛用于相变问题，但对于较大的斯特芬数和比奥数，它们可能会给出物理上错误的结果。下面我们用有限厚板中一个简单的单相熔化过程来说明这一点，得出这些参数可能有多大的估计。

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On the limitations of analytical approximations for phase change problems with large biot numbers

While analytical approximation methods are attractive and widely used for phase change problems they may give physically fallacious results for larger Stefan and Biot numbers. In the following we show this for a simple one-phase melting process in a finite slab, obtaining estimates of how large these parameters may be.

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Letters in Heat and Mass Transfer

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