On the appearance of swirl in a confined sink flow

Authors
Fernandez-Feria, R Sanmiguel-Rojas, E
Citation
R. Fernandez-feria et E. Sanmiguel-rojas, On the appearance of swirl in a confined sink flow, PHYS FLUIDS, 12(11), 2000, pp. 3082-3085
Citations number
5
Categorie Soggetti
Physics
Journal title
PHYSICS OF FLUIDS
ISSN journal
10706631 → ACNP
Volume
12
Issue
11
Year of publication
2000
Pages
3082 - 3085
Database
ISI
SICI code
1070-6631(200011)12:11<3082:OTAOSI>2.0.ZU;2-T
Abstract
Radial and swirl velocity components in an axisymmetric sink flow inside a cylindrical container of variable aspect ratio H/R are measured using laser -Doppler anemometry. It is shown that a vortex, superimposed to the meridio nal sink flow, is formed when the Reynolds number based on the sink flow ra te is above a critical value. Both clockwise and counterclockwise direction s of rotation are found. (C) 2000 American Institute of Physics. [S1070-663 1(00)01111-9].