摘要
在平面热源羽流流量近似计算公式的基础上,结合一种二区流动模型,建立了自然通风热分层高度和通风量计算式;基于预定边界条件的思想,二区模型为数值模拟提供边界条件,数值模拟反向检验了二区模型和近似羽流公式的适用性;对热力控制型通风有限空间进行了数值实验,并对模拟数据进行回归分析,获得了热分层高度特征方程的表达式.
Based on a two-zone model,this paper establishes calculating equations of natural ventilation thermal stratification height and ventilation rate by using approximate formula of plate heat source plume.According to the thought of prespecified boundary conditions,two-zone mode provides boundary conditions to CFD simulation,and inversely CFD simulation verifies the results of two-zone mode and the practicability of the calculating equations,carrying out numerical experiments to thermally controlled ventilated confined spaces,concludes a concrete form of the criterion equation of thermal stratification height by the regression analysis of the numerical experiment data.
出处
《浙江树人大学学报（自然科学版）》
2007年第2期28-32,54,共6页
Journal of Zhejiang Shuren University(Acta Scientiarum Naturalium)
基金
浙江省教育厅科学研究资助项目(20060416)
关键词
通风
热分层高度
热羽流
二区模型
ventilation
thermal stratification height
thermal plume
two-zone model
