RESISTANCE OF A GROOVED SURFACE TO PARALLEL FLOW AND CROSS-FLOW

被引：256

作者：

LUCHINI, P

MANZO, F

POZZI, A

机构：

[1] Istituto di Gasdinamica, Faeoltà di Ingegneria, University of Naples

来源：

JOURNAL OF FLUID MECHANICS | 1991年 / 228卷

关键词：

D O I：

10.1017/S0022112091002641

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A study is undertaken of both parallel flow and cross-flow in the viscous sublayer generated by a fluid streaming along a grooved surface, with the aim of clarifying the phenomena that underlie the reduction of turbulent drag by such surfaces. A quantitative characterization of the effectiveness of different groove profiles in retarding secondary cross-flow is given in terms of the difference of two 'protrusion heights'. Analytical calculations of limit cases and a boundary-element computer code for the analysis of general profiles are illustrated, and several examples are presented and discussed.

引用

页码：87 / 109

页数：23

共 18 条

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