变物性非均匀复合材料热传导方程

Heat Conduction Equation of Changing Physical Parameter and Nonhomogeneous Compound Material

由基本定律出发,根据变物性非均匀复合材料特点,确定自由能密度的幂级数展开式的次数。利用熵密度对自由能密度的限制,导得熵密度变化率。结合变物性非均匀材料本构方程,推导出变物性非均匀复合材料的热传导方程。

Based on the basic principle,this article determines the higtest power exponent of power series expansion of the free energy density,depending on the characteristics of changing physical parameter and nonho-mogeneous compound material. By taking use of the limit of entropy density on free energy density,it deduces changing rate of entropy density. Then by being combined with constitutive equation of changing physical parameter and nonhomogeneous compound material,it deduces the heat conduction equation of changing physical parameter and nonhomogeneous compound material.