技术中心

采用“二区+CFD”模型研究点源自然通风及其羽流【英文篇名】 Study on point heat source natural ventilation and its plumes with an integrated two-zone and CFD model 【作者中文名】 高军; 高甫生; 赵加宁; 【作者英文名】 By Gao Jun ★; Gao Fusheng and Zhao Jianing★Harbin Institute of Technology; Harbin; China; 【作者单位】 哈尔滨工业大学; 【文献出处】 暖通空调, Hv 羽流; 二区模型; 热分层; 【英文关键词】 natural ventilation; plume; two-zone model; thermal stratification; 【摘要】 讨论了几个典型的羽流流量计算公式 ,结合一种二区自然通风模型 ,建立了热分层高度、通风量和中和界高度的计算式。基于单步静态耦合 (或预定边界条件 )的思想 ,采用“二区 +CFD”模型的方法研究了自然通风及其羽流。二区模型提供CFD模拟边界条件 ,CFD模拟反向检验二区模型 ,同时检验各羽流公式的适用性 【英文摘要】 Discusses several representative equations of point source plume. Establishes calculating equations of thermal stratification height, ventilation rate and neutral level based on a two-zone model. According to the thoughts of one-step static coupling or pre-specified boundary conditions, studies natural ventilation and its plumes using an integrated two-zonal and CFD model. Two-zone model provides boundary conditions to CFD simulation, and inversely CFD simulation verifies the results of two-zone model and t...