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APPARATUS AND DEMONSTRATION NOTES Jeffrey S. Dunham, Editor
 

Summary: APPARATUS AND DEMONSTRATION NOTES
Jeffrey S. Dunham, Editor
Department of Physics, Middlebury College, Middlebury, Vermont 05753
This department welcomes brief communications reporting new demonstrations, laboratory equip-
ment, techniques, or materials of interest to teachers of physics. Notes on new applications of older
apparatus, measurements supplementing data supplied by manufacturers, information which, while not
new, is not generally known, procurement information, and news about apparatus under development
may be suitable for publication in this section. Neither the American Journal of Physics nor the Editors
assume responsibility for the correctness of the information presented. Submit materials to Jeffrey S.
Dunham, Editor.
Investigating vortex streets behind real and virtual bluff bodies
Y. D. Afanasyeva
and C. G. Deacon
Department of Physics and Physical Oceanography, Memorial University of Newfoundland, St. John's,
Newfoundland, Canada A1B 3X7
Received 4 July 2005; accepted 6 January 2006
This paper describes a laboratory experiment designed to study regular arrays of vortices occurring
behind an object in a stream of fluid. This phenomenon is observed in industrial flows, flows in the
ocean, and in the atmosphere. In the first part of the experiment we consider the flow behind a
circular cylinder. In the second part of the experiment the effect of a body on the fluid is imitated

  

Source: Afanassiev, Iakov - Department of Physics and Physical Oceanography, Memorial University of Newfoundland

 

Collections: Geosciences