工程科学学报Issue(6)：721-730,10.DOI:10.13374/j.issn2095-9389.2015.06.007
基于两相流EWF模型的样品表面相变行为及液膜变化的CFD预测
CFD prediction of phase change behavior and liquid film evolution on specimens based on the Eulerian wall film model of two-phase flow
摘要
Abstract
ABSTRACT A method was presented to predict phase change behavior and liquid film evolution on specimens by combining the Eulerian wall film ( EWF) model of two-phase flow with the self-defined formula of dew amount. Firstly, a self-built environmental test chamber was used to carry out condensation physical tests, and simulated tests were respectively performed based on the EWF model and the single-phase flow model. It is found that the EWF model is more accurate than the single-phase flow model due to necessary consideration of the phase change process. Then, a self-defined formula was established to calculate the dew amount and it was verified by the physical tests. Finally, under the premise that simulated and tested temperatures, relatively humidity curves and dew amounts show good agreement, the changing process of liquid films on specimen surfaces was predicted, and the simulation prediction of liquid film shape on specimen surfaces is in consistent with in-situ video imaging morphology during the physical tests.关键词
大气腐蚀/相变/液膜/二相流/数值模拟/计算流体动力学( CFD)Key words
atmospheric corrosion/phase change/liquid films/two-phase flow/numerical simulation/computational fluid dynamics ( CFD)引用本文复制引用
陈洁,时鹏,文磊,闫松涛,曹宗宝,金莹..基于两相流EWF模型的样品表面相变行为及液膜变化的CFD预测[J].工程科学学报,2015,(6):721-730,10.基金项目
教育部新世纪优秀人才支持计划资助项目(NCET-10-0224) （NCET-10-0224）
中央高校基本科研业务费资助项目(FRF- TP-10-005B) （FRF- TP-10-005B）
“重大工程材料服役安全研究评价设施冶预研资助项目(YYXM-1412-0001) （YYXM-1412-0001）
高等学校学科创新引智计划资助项目(B12012) （B12012）
