流体运动中的非Fourier传热  

NON-FOURIER HEAT TRANSFER IN FLUID FLOWS

作　　者：陈国谦[1] 杨志峰[1] 彭仕文[1] 

机构地区：[1]北京航空航天大学动力系,北京师范大学环境科学研究所

出　　处：《航空学报》1994年第4期386-392,共7页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金;攀登基金

摘　　要：分析了运动流体中非Ｆｏｕｒｉｅｒ传热的数理基础。运用特征一次特征方法阐明基本方程组的影响域、决定域等概念及其物理内涵；强调热Ｍａｃｈ波的存在。以流动中固定热源问题证明基本关系正确；并给出当流动速度不小于热传播速度时，流汤中发生热激波。This paper ls intended to analyze the mathematical physics of the non-Fourier heat transfer in fluid flows. To give the basis for analytical and numerical approaches,the zones of dependence and influence, With their physical implications, of the governing equations are ex-pounded via the viewpoint of characteristics and sub-characteristics.The validitv of the constitutive relation is justified by a fixed-heat-source problem in the flow,and thermal shocks are shown to exist in the flow field when the flow velocity is equal to or faster than the thermal propagation speed of the fluid.

关 键 词：热通量 传热 流体流 

分 类 号：V231.13[航空宇航科学与技术—航空宇航推进理论与工程]