中国物理B ›› 2007, Vol. 16 ›› Issue (1): 193-199.doi: 10.1088/1009-1963/16/1/033
江少恩, 杨家敏, 郑志坚, 丁永坤
Jiang Shao-En(江少恩)†, Yang Jia-Min(杨家敏), Zheng Zhi-Jian(郑志坚), and Ding Yong-Kun(丁永坤)
摘要: Diffusive heat waves play an important role in radiation hydrodynamics. In low density material, it may be possible that the radiative energy flux dominates the material energy flux and thus energy flow can be determined. In this paper by means of a simple algebraic method, the expressions characterizing the condition of diffusion approximation and supersonic transport of heat wave are found. In this case, the ratio of the radiative energy flux to the material energy flux is directly proportional to the product of Mach number M multiplied by optical depth \tau. And it may also be expressed by radiation temperature heating material. The material density and length may be determined in order to achieve above-mentioned conditions when the driven temperature and duration are given.
中图分类号: (Radiation gas dynamics)