平面相变热传导问题等效热容法的有限元解

用有限元法计算带相变的平面热传导问题，应用单元相变发生的热焓判据，使程序能够自启动，不必给出单元初始状态输入数据，相界面位置计算按线性插值处理，使程序有较高的计算效率，算例表明，等效热容法有限元程序热焓判据合理，相界面位置计算准确，并能成功地处理相变焓，计算出温度分布。

Finite element solution of heat transfer with planar phase change by equivalent heat capacity method

The problem of the heat transfer with the planar phase change has been solved by the finite element method. A judgement of the heat enthalpy for the phase change element has been applied, so the FEM program dealing with the phase change can start without any other initial phase state input data. The position of the phase interface has been given by linear difference in the program with little running time. The given examples have demonstrated that the FEM program in this paper can successfully deal with the phase transformation enthalpy, can give the accurate interface of the phase with smooth node temperature. And the examples also show that the judgement of phase change is valid.