节点文献
透平端壁湍流分离—再附边界层计算
Calculation of turbine end wall turbulence separation and re-attachment of the boundary layer
【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。
【Abstract】 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.
【关键词】 涡轮叶栅;
通流部分;
边界层;
计算方法;
【Key words】 turbine cascade; flow path; boundary layer; calculation method;
【Key words】 turbine cascade; flow path; boundary layer; calculation method;
- 【文献出处】 热能动力工程 ,Journal of Engineering for Thermal Energy and Power , 编辑部邮箱 ,1989年03期
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