热传导方程有限元算法的两种计算准则比较

Comparison between Two Kinds of Criteria for Finite Element Algorithm of Transient Heat Conduction Equation

针对用有限元法计算瞬态温度场可能会产生振荡或超界的问题，曾提出过两种计算准则。通过数学推导，比较作者等提出的方法和传统的特征根法．发现新方法导出的计算准则更为完善和普遍适用。

There exist two kinds of criteria to deal with the problems of oscillation and excessiveness in finite element solutions of transient heat conduction equation .By mathematical reasoning, the author compares the criteria by the author et al with classical eigenvalue method and it is found that the author's criteria are superior and more complete.