摘要
证明了气体中存在有正比于温度梯度的热流力，并以热流力效应解释微重力下的气体热对流现象．证明了雷诺数的物理意义实际上是表示单位质量流体受到的摩擦力与粘性力（ｖ￣２／Ｄ￣３）之比，并指出流体分子的涨落剩余效应将影响失稳后的流动状态．
The heat force ,which is proportional to the gradient of temperature,is proved toexist in gases,and the thermal convection of gases under micro-gravity is explained to be theeffect of the heat force. In addition,the paper also proves that the physical meaning of Reynoldsnumber is actually to show the ratio of friction forcing on the fluid of unit mass to the viscousforce(v￣2/D￣3 )and indicates that the residual effect of fluctuation of the fluid molecules mayinfluence the states of flow after unstability.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1995年第2期208-211,共4页
Journal of Dalian University of Technology
基金
辽宁省科学技术基金
关键词
热流动
对流传热
稳定性
热流力
heat flow
convective heat transfer
flow stability theory/heat force
