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。
Based on the model test, the instantaneous concentration and velocity images in different temperatures and scales are put forwarded. And the range, shape and trend of diffusion are acquired.
本文结合模型试验，得出了不同温升及变率下表面横向浮射流的瞬时浓度场和流速场，进而分析得出随着温度及变率的变化浓度场的扩散范围、形态特点和趋势。
The diffusion trapping efficiency and inertia collision trapping efficiency are calculated under different gas flowing velocity, particulate size and ceramic foam parameter using the numerical model.
通过模拟计算，分析了气体流速、微粒粒径、泡沫陶瓷微孔参数对微粒扩散拦截和惯性碰撞拦截效率的影响。
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