Local thermal equilibrium for transient heat conduction: theory and comparison with numerical experiments
Local thermal equilibrium for transient heat conduction: theory and comparison with numerical experiments
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DOI：
10.1016/0017-9310(95)00028-8
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发表时间：
1995-10
影响因子：
5.2
通讯作者：
M. Quintard;S. Whitaker
中科院分区：
文献类型：
--
作者：
M. Quintard;S. Whitaker
局部热平衡是指可以用单一温度来描述多相系统中的传热过程的状态。当这种情况发生时，可以使用一个方程模型，并大大简化了传热过程的分析。在本文中，我们首先开发的约束条件，必须满足，以使局部热平衡的原则是有效的，然后我们比较这些约束条件与数值实验瞬态热传导在两相系统。合理的协议之间的估计和数值实验。
Local thermal equilibrium refers to the state in which a single temperature can be used to describe a heat transfer process in a multiphase system. When this condition occurs, a one-equation model can be used and the analysis of the heat transfer process is greatly simplified. In this paper we first develop the constraints that must be satisfied in order that the principle of local thermal equilibrium be valid, and we then compare these constraints with numerical experiments for transient heat conduction in two-phase systems. Reasonable agreement between the estimates and the numerical experiments is obtained.