热松弛时间对双曲型热传导方程的影响  

The Effect of Thermal Relaxation Time on Hyperbolic Heat Transport Equation

作　　者：王宝娥[1] 

机构地区：[1]西藏民族学院,咸阳712082

出　　处：《重庆科技学院学报（自然科学版）》2011年第5期172-174,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

摘　　要：双曲型热传导方程不遵循传统的傅立叶热传导定律,其传导特性受热松弛时间的影响。确定出双曲型热传导方程的无量纲方程形式,应用有限单元法求解一维瞬态非傅立叶无量纲热传导方程。通过比较,分析不同热松弛时间对非傅立叶热传导过程波动过程和热延迟的影响。Hyperbolic heat transport equation does not follow traditional Fourier heat conduction law and can be affected by thermal relaxation time. Dimensionless format of hyperbolic heat transport equation can be determined; one-dimensional transient heat transport equation can be solved by finite element method in dimensionless format. Compared with different thermal relaxation time in heat conduction process, the oscillation and delay behavior are studied.

关 键 词：热传导 双曲型方程 热松弛时间 

分 类 号：O551[理学—热学与物质分子运动论]