中文名称:扩散率 英文名称:diffusivity 其他名称:扩散系数(coefficient of diffusion) 定义:保守属性或所含物质的扩散速率的一种度量。在大气中,涡旋运动的扩散率(涡动扩散率)比分子运动的扩散率要大好几个量级。
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Maxwell's coefficient of diffusion 麦克斯韦扩散系数
coefficient of diffusion impedance 扩散阻抗系数
Coefficient of diffusion & dispersion 扩散弥散系数
concentration coefficient of diffusion 扩散浓度系数
horizontal turbulent coefficient of diffusion 水平扩散系数
coefficient of pressure diffusion 加压扩散系数
coefficient of mutual diffusion 相互扩散系数
coefficient of eddy diffusion [流] 涡流扩散系数
Considering the change of stream gradient, we estimated the parameter of longitudinal coefficient of diffusion in different reaches.
依据河道比降的变化情况,对不同河段的纵向扩散系数进行估值。
The mass transfer equation was introduced into heat transfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.
将传质方程引入到垂直管降膜蒸发传热模型中,求解时考虑了径向速度、质量扩散系数和膜厚变化对传热的影响。
The diffusion coefficient of hydrogen in an iron membrane was measured using slightly improved electrochemical hydrogen permeation technique.
一个略加改进的电化学氢渗透技术被用于测定氢在铁膜中的扩散系数。
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