江汉大学学报（自然科学版）2023，Vol.51Issue(6)：25-32,8.DOI:10.16389/j.cnki.cn42-1737/n.2023.06.004
膜态沸腾的汽化成核与界面演化研究
Bubble Nucleation and Interface Evolution During Film Boiling
摘要
Abstract
Compared with convective heat transfer,boiling heat transfer takes more heat away from the latent heat of gasification,which can significantly improve the heat transfer.In this paper,CFD software was used to construct the UDF function to trace the bubble interface evolution during film boiling,and the VOF model was used to simulate the bubble nucleation and single bubble evolution at the microscopic level.The results showed that bubble nucleation included the growth and extension stages.The rising bubble-induced vortex enhanced the heat and mass transfer with the surrounding media.The increase in surface tension and viscosity would extend the bubble separation time and increase the bubble diameter.This study has scientific significance for understanding the heat transfer mechanism of film boiling and is expected to guide the related engineering designs of heat transfer.关键词
沸腾换热/VOF模型/传热传质/气泡演化/表面张力Key words
boiling heat transfer/VOF model/heat and mass transfer/bubble evolution/surface tension分类
能源科技引用本文复制引用
陈婷,陆丹鸿,康瑞鑫,刘国华..膜态沸腾的汽化成核与界面演化研究[J].江汉大学学报（自然科学版）,2023,51(6):25-32,8.基金项目
国家自然科学基金资助项目(52306086) （52306086）
