The flow of a dilute cationic surfactant solution past a circular cylinder

被引：13

作者：

Bergins, C

Nowak, M ^{[1
]}

Urban, M

机构：

[1] Univ Dortmund, Dept Chem Engn, Chair Energy Proc Engn & Fluid Mech, D-44221 Dortmund, Germany

[2] UC Umwelt Consulting GmbH, D-45527 Hattingen, Germany

来源：

EXPERIMENTS IN FLUIDS | 2001年 / 30卷 / 04期

关键词：

D O I：

10.1007/s003480000218

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The influence of a dilute solution of the cationic surfactant C(14)Sal on the flow past a cylinder was investigated by means of LDV and Toepler Schlieren optics for visualization of both the flow and structure of the fluid. At low Reynolds numbers the flow is similar to the Newtonian Karman vortex street. The periodic vortex shedding disappears simultaneously with the occurrence of a shear-induced structure. The alteration of the turbulence characteristics is especially pronounced in the turbulent velocity fluctuations with the u(rms) being many times over the values in water, whereas the v(rms) are drastically reduced.

引用

页码：410 / 417

页数：8

共 30 条

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