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Title: Cylinder wakes in flowing soap films

Abstract

We present an experimental characterization of cylinder wakes in flowing soap films. From instantaneous velocity and thickness fields, we find the vortex-shedding frequency, mean-flow velocity, and mean-film thickness. Using the empirical relationship between the Reynolds and Strouhal numbers obtained for cylinder wakes in three dimensions, we estimate the effective soap-film viscosity and its dependence on film thickness. We also compare the decay of vorticity with that in a simple Rankine vortex model with a dissipative term to account for air drag. [copyright] [ital 1999] [ital The American Physical Society]

Authors:
;  [1];  [2]
  1. (Center for Nonlinear Studies, Condensed Matter and Thermal Physics Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States))
  2. (Dynamic Experimentation Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States))
Publication Date:
OSTI Identifier:
6327144
Alternate Identifier(s):
OSTI ID: 6327144
Resource Type:
Journal Article
Journal Name:
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Additional Journal Information:
Journal Volume: 60:3; Journal ID: ISSN 1063-651X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CYLINDERS; FILM FLOW; SOAPS; THIN FILMS; TURBULENCE; TURBULENT FLOW; VISCOSITY; VORTEX FLOW; VORTICES; FILMS; FLUID FLOW; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS 661300* -- Other Aspects of Physical Science-- (1992-)

Citation Formats

Vorobieff, P., Ecke, R.E., and Vorobieff, P. Cylinder wakes in flowing soap films. United States: N. p., 1999. Web. doi:10.1103/PhysRevE.60.2953.
Vorobieff, P., Ecke, R.E., & Vorobieff, P. Cylinder wakes in flowing soap films. United States. doi:10.1103/PhysRevE.60.2953.
Vorobieff, P., Ecke, R.E., and Vorobieff, P. Wed . "Cylinder wakes in flowing soap films". United States. doi:10.1103/PhysRevE.60.2953.
@article{osti_6327144,
title = {Cylinder wakes in flowing soap films},
author = {Vorobieff, P. and Ecke, R.E. and Vorobieff, P.},
abstractNote = {We present an experimental characterization of cylinder wakes in flowing soap films. From instantaneous velocity and thickness fields, we find the vortex-shedding frequency, mean-flow velocity, and mean-film thickness. Using the empirical relationship between the Reynolds and Strouhal numbers obtained for cylinder wakes in three dimensions, we estimate the effective soap-film viscosity and its dependence on film thickness. We also compare the decay of vorticity with that in a simple Rankine vortex model with a dissipative term to account for air drag. [copyright] [ital 1999] [ital The American Physical Society]},
doi = {10.1103/PhysRevE.60.2953},
journal = {Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics},
issn = {1063-651X},
number = ,
volume = 60:3,
place = {United States},
year = {1999},
month = {9}
}