摘要
本文应用常规Ｋ─ε湍流模型对空腔内的稳态和非稳态热分层流动进行了数值模拟，主要包括以下三方面的工作：１．空腔内恒温强迫对流流动的模拟；２．空腔内稳态热分层流动的模拟；３．空腔内非稳态热分层流动的模拟。计算结果和实验结果进行了比较，说明常规Ｋ─ε模型能较好地模拟热分层流动的平均温度分布，将对该模拟方法进一步应用于工程问题有重要的指导意义。
The conventional K-ε turbulence model is applied to simulate steady and unsteady thermal stratified flows in cavities. The following three computations are conducted in this peper: (1) a forced convection flow in a cavity; (2) a steady thermal stratified flow in a cavity, and (3) an unsteady thermal stratified flow in a cavity. The comparisons are made between the compunctions and experiments which shows that the model can fairly well be used to simulate mean temperatures of the flow.The present study is significant for the further engineering applications.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
1994年第3期325-328,共4页
Chinese Journal of Hydrodynamics
关键词
分层流动
湍流
热分层
空腔
numerical simulation
stratified flow
turbulence model
