Diffusivity, mass diffusivity or diffusion coefficient is usually written as the proportionality constant between the molar flux due to molecular diffusion and the negative value of the gradient in the concentration of the species. More accurately, the diffusion coefficient times the local concentration is … Ver más Solids The diffusion coefficient in solids at different temperatures is generally found to be well predicted by the Arrhenius equation: where Ver más In population dynamics, kinesis is the change of the diffusion coefficient in response to the change of conditions. In models of purposeful kinesis, diffusion coefficient depends … Ver más • Atomic diffusion • Effective diffusion coefficient • Lattice diffusion coefficient Ver más For self-diffusion in gases at two different pressures (but the same temperature), the following empirical equation has been suggested: • D … Ver más The effective diffusion coefficient describes diffusion through the pore space of porous media. It is macroscopic in nature, because it is not individual pores but the entire pore space that needs to be considered. The effective diffusion coefficient for … Ver más Web"intraparticle diffusivity"中文翻译 粒子内的扩散系数, 内扩散系数 "liquid diffusivity"中文翻译 液体扩散率 "magnetic diffusivity"中文翻译 磁扩散率 "mass diffusivity"中文翻译 质 …

Diffusivity SpringerLink

Web1) turbulent mass transfer diffusivity 湍流传质扩散系数 1. By this model,the turbulent mass transfer diffusivity ,the three-dimensional velocity/concentration profiles and the efficiency of chemical equipment can be predicted simultaneously. 使用这一模型可同时计算出 湍流传质扩散系数 、三维浓度场和速度场分布。 2. The turbulent mass transfer … Webtime, Fick’s law must be combined with a mass balance or continuity equation (Eq 8) to deter-mine the time-dependent concentration, where t is the time in seconds: @J @z ¼ @c @t (Eq 8) Equations 7 and 8 are combined to form the general diffusion equation, which is a second-order linear partial differential equation and cannot be solved ... radio praca rock

diffusivity coefficient 中文是什么意思 - 爱查查

Web14 de ene. de 2015 · The diffusion coefficient is most simply understood as the magnitude of the molar flux through a surface per unit concentration gradient out-of-plane. It is analogous to the property of thermal … Web1. Select multicomponent in the drop-down list to the right of Mass Diffusivity. 2. In the resulting Mass Diffusion Coefficients dialog box (Figure 8.9.2), select the species in the Species Di list and the Species Dj list for which you are going to define the mass diffusion coefficient for species in species . Web"diffusivity" 中文翻译 : 二氟乙烯; 扩散度；扩散系数; 扩散能力; 扩散系数；扩散率; 扩散性扩散系数; 弥漫率; 弥漫性 "eddy" 中文翻译 : n. 埃迪〔姓氏〕。 n. (水，风尘等的)漩涡，涡 … radio praca