Boundary Vorticity Flux and Engineering Flow Management

CORC > 北京大学 > 工学院

	Boundary Vorticity Flux and Engineering Flow Management
	Wu, Jiezhi ; Wu, Hong ; Li, Qiushi
刊名	advances in applied mathematics and mechanics
	2009
关键词	Aerodynamics boundary vorticity flux optimal design TRAVELING-WAVE SURFACE
英文摘要	To improve the performance of complex viscous engineering flows, the focus should be on local dynamics (local processes and structures) measured by the space-time derivatives of the primary-variable fields, rather than these fields themselves. In the context of optimal flow management such as optimal configuration design and flow control, the local fluid dynamics on solid wall is of most direct relevance. For large Reynolds-number flows, we show that the on-wall local dynamics is highlighted by the balance between tangential pressure gradient and vorticity creation rate at the wall (boundary vorticity flux, BVF), namely the on-wall coupling of the compressing and shearing processes. This basic concept is demonstrated by previously unpublished and newly obtained numerical examples for external and internal flows, including the role of BVF as a faithful marker of the local appearance of boundary-layer separation and wall curvature discontinuity, and the use of BVF-based formulas to optimize the integrated performance of airfoil and compressor rotor blade.; Mathematics, Applied; Mechanics; SCI(E); 2; ARTICLE; 3; 353-366; 1
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/316095]
专题	工学院
推荐引用方式 GB/T 7714	Wu, Jiezhi,Wu, Hong,Li, Qiushi. Boundary Vorticity Flux and Engineering Flow Management[J]. advances in applied mathematics and mechanics,2009.
APA	Wu, Jiezhi,Wu, Hong,&Li, Qiushi.(2009).Boundary Vorticity Flux and Engineering Flow Management.advances in applied mathematics and mechanics.
MLA	Wu, Jiezhi,et al."Boundary Vorticity Flux and Engineering Flow Management".advances in applied mathematics and mechanics (2009).