ON THE INTERACTION OF A SUBMERGED TURBULENT JET WITH A CLEAN OR CONTAMINATED FREE-SURFACE

被引：12

作者：

ANTHONY, DG ^{[1
]}

HIRSA, A ^{[1
]}

WILLMARTH, WW ^{[1
]}

机构：

[1] UNIV MICHIGAN,DEPT AEROSP ENGN,ANN ARBOR,MI 48109

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1991年 / 3卷 / 02期

关键词：

D O I：

10.1063/1.858131

中图分类号：

O3 [力学];

学科分类号：

08 [工学]; 0801 [力学];

摘要：

The effect of a free surface on the structure of a submerged turbulent jet is investigated experimentally. Three-component LDV measurements beneath a clean free surface show that the mean flow spreads laterally outward in a shallow surface layer much wider than the mean flow well below the surface. As the free surface is approached, velocity fluctuations normal to the surface are diminished while those parallel to the surface are enhanced. Laser-induced fluorescence is used to show that the surface layer contains fluid ejected from the jet. With the addition of surface-active agents, the surface layer is suppressed.

引用

页码：245 / 247

页数：3

共 8 条

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[2]

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