化工学报2016，Vol.67Issue(z1)：33-39,7.DOI:10.11949/j.issn.0438-1157.20160643
微细通道中R32流动沸腾换热的数值模拟
Numerical simulation on flow boiling heat transfer of R32 in micro/mini-channels
摘要
Abstract
Two dimensional unsteady numerical simulations of flow boiling heat transfer inside a 1 mm and 2 mm smooth horizontal tubes for R32 were conducted utilizing VOF multiphase model,under the condition of a mass flux of 100 kg · m-2 · s-1,a heat flux of 12 kW · m-2,a saturation temperature of 15℃C.Single phase flow,bubbly flow,slug flow were observed in the simulation results for R32 flow boiling heat transfer inside a 2 mm channel while single phase flow,bubbly flow,confined bubbly flow,slug flow were observed inside a 1 mm channel.Bubble movement characters and influences on flow boiling heat transfer basic patterns exerted by channel diameter during flow boiling heat transfer inside the tubes for R32 were analyzed based on the distributions of gas phase volume fraction and temperature generated by the simulations.A promising consistency was achieved through the comparison between numerical simulation and experimental results.关键词
多相流/流动沸腾/微通道/数值模拟/R32/VOF模型Key words
multiphase flow/flow boiling/microchannels/numerical simulation/R32/VOF model分类
能源科技引用本文复制引用
赵然,吴晓敏,黄秀杰..微细通道中R32流动沸腾换热的数值模拟[J].化工学报,2016,67(z1):33-39,7.基金项目
清华大学自主科研计划项目(20131089319) （20131089319）
国家自然科学基金创新研究群体项目(51321002).supported by the Tsinghua University Initiative Scientific Research Program (20131089319) and the National Natural Science Foundation of China Science Fund for Creative Research Groups (51321002). （51321002）
