耦合墙体扩散的室内双扩散混合对流输运过程
Transportation of indoor double diffusive mixed convection coupled with diffusion in solid walls
摘要：
研究了建筑墙体传热传质与气流流动综合作用下室内双扩散混合对流过程，介绍了整体求解流体固体区域动量守恒方程、能量守恒方程、污染物组分守恒方程及热函数和质函数方程的数值方法，分析了送风强度、热源强度、污染源强度及墙体热质扩散性能对室内混合对流过程的影响，采用流线、热线与质线反映了热和污染物在墙体和建筑室内的输运过程。
Abstract：
Numerically studies the indoor double diffusive mixed convection process coupled with heat and mass diffusion in solid walls. Simultaneously solves the corresponding momentum conservation equation，energy conservation equation，pollutant mass species conservation equation，and heat-function and mass-function equations across both fluid and solid regions. Analyses the influences of air supplying intensity，heat source intensity，pollutant source intensity and heat/mass diffusion characteristics of the wall on the indoor mixed convection in details. Adopts streamlines，heat-lines and mass-lines to represent real transportation routes of fluid，heat and pollutant both in solid walls and in building enclosure.
Keywords:mixedconvection，doublediffusion，wall，coupledheatandmasstransfer，heat-line，mass-line