Chin. J. Semicond. > Volume 18 > Issue 5 > Article Number: 375

一种时域无条件稳定的计算瞬态热场的显式算法──步内建模法

张鸿欣

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Abstract: 步内建模法(MPWT,ModellingthediffusionProcessWithintheTimestep),与有限差分法的区别是对时间步内的扩散过程进行了建模,从而达到对任意大时间步长的(时域无条件)稳定性;对小时间步长,该法退化为通常的有限差分法,因而有自检性;与传输线矩阵法的区别是直接建模于扩散过程,从而使模型大为简化只含阻、容参数.对大时间步长时的长程热交换建模是该法的又一特征.该法结果与其他数值方法、解析方法的结果符合相当一致.

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History

Manuscript received: 19 August 2015 Manuscript revised: Online: Published: 01 May 1997

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