原子能科学技术2018，Vol.52Issue(5)：776-781,6.DOI:10.7538/yzk.2018.52.05.0776
基于LB方法的管内流动沸腾传热模拟
Numerical Study of Heat Transfer on Flow Boiling in Vertical Tube by LB Method Simulation
摘要
Abstract
In order to study the heat transfer on flow boiling and bubble behavior in vertical tubes,the lattice Boltzmann (LB) method was used to simulate the flow and heat transfer processes respectively by the improved pseudo potential model and the thermal model.The simulation results were compared with the empirical relationships to verify the correctness of the model.The influence of bubble behavior on boiling heat transfer coefficient was investigated.The results show that the heat transfer coefficient presents periodic fluctuations with the nucleation,growth,slip and detachment of bubbles.Finally,the effect of gravity acceleration on bubble behavior and boiling heat transfer was investigated.The larger the gravity,the shorter the growth cycle of the bubble,the greater the boiling heat transfer coefficient.关键词
格子玻尔兹曼/管内流动沸腾/沸腾传热/气泡周期Key words
lattice Boltzmann/flow boiling in tube/boiling heat transfer/bubble cycle分类
能源科技引用本文复制引用
孙挺臻,刘倩,桂南,杨星团,屠基元,孔海志,姜胜耀..基于LB方法的管内流动沸腾传热模拟[J].原子能科学技术,2018,52(5):776-781,6.基金项目
国家自然科学基金资助项目(51576211) （51576211）
国家自然科学基金创新研究群体科学基金资助项目(51321002) （51321002）
国家高技术研究发展计划资助项目(2014AA052701) （2014AA052701）
全国优秀博士学位论文作者专项资金资助项目(201438) （201438）
