Applied Mathematics and Mechanics (English Edition) ›› 1981, Vol. 2 ›› Issue (4): 411-418.
刘先志
Liu Hsien-chih
摘要: In this paper we propose that the solid thermal conductivity varies first with the space coordinate according to a linear law. and then with an exponential one. In this way we have set up six differential equations successfully; and for variable density, variable specific heat as well as variable conductivity, another six differential equations have also been deduced.