摘要
本文根据Veldman的边界层与势流相互作用模型,提出了一种带有湍流分离气泡的端壁边界层的计算方法。本文给出的计算方法适用于由凸台、凹槽、后台阶、壁面扩张角较大及根部反动度为负等因素引起的带有湍流分离气泡的边界层的计算,并且具有计算时间短,节省计算机内存等特点。
On the basis of Veldman model of interaction between a boundary layer andpotential flow,this paper describes a method for calculating end wall boun-dary layers with turbulence separation bupbles.The recommended method issuitable for calculating boundary layers with turbulence separation bubblescaused by such factors as bosses,grooves,rear shoulders,relatively largewall surface expansion angles or negative root reaction.It features shortcalculation time,significant economy in computer internal storage,etc.
出处
《热能动力工程》
CAS
CSCD
北大核心
1989年第3期12-16,11,共6页
Journal of Engineering for Thermal Energy and Power
关键词
透平机械
湍流
边界层
叶栅
涡轮
turbine cascade
flow path
boundary layer
calculation method
