实验流体力学2025，Vol.39Issue(1)：8-20,13.DOI:10.11729/syltlx20230114
氢与碳氢燃料超声速气膜冷却和减阻规律及其影响机制
Cooling and friction reduction performance and mechanism of supersonic film cooling using hydrogen and hydrocarbon
摘要
Abstract
The essential difference of the turbulent state in the mixing layer contributes to the totally different behavior of the cooling and wall friction reduction performances of the hydrogen and hydrocarbon fuel films.The turbulent transport processes between the hydrogen film and the mainstream are much weaker than that of the hydrocarbon film making inert hydrogen to be rather superior in cooling and friction reduction applications.However,the film cooling performance severely deteriorates when the hydrogen film burns due to the severe heat release sources presented near the wall.On the other hand,the boundary layer combustion of hydrocarbon film can remarkably improve its original barely satisfactory cooling and friction reduction performance to be comparable to that of the hydrogen film due to the suppression of turbulent transport processes in the mixing layer and presence of heat absorption sources near the wall.关键词
超声速气膜冷却/氢气/碳氢燃料/近壁湍流输运/大涡模拟Key words
supersonic film cooling/hydrogen/hydrocarbon/turbulent transport processes/large eddy simulation分类
航空航天引用本文复制引用
韦健飞,米振昊,章思龙,左婧滢,李欣,秦江,鲍文..氢与碳氢燃料超声速气膜冷却和减阻规律及其影响机制[J].实验流体力学,2025,39(1):8-20,13.基金项目
国家自然科学基金项目(52176037) （52176037）
