Study of Several Jets Impinging on a Plane Wall: Visualizations and Laser Velocimetry Investigations

[+] Author and Article Information
A. Bernard

Laboratoire de Mécanique de Lille, Cité Scientifique, avenue Paul Langevin, 59655 Villeneuve D’Ascq Cédex France

L.-E. Brizzi, J.-L. Bousgarbiès

Laboratoire d’Etudes Aérodynamiques, Boulevard 3, Teleport 2, BP 179, 86690 Futuroscope Cédex France

J. Fluids Eng 121(4), 808-812 (Dec 01, 1999) (5 pages) doi:10.1115/1.2823541 History: Received August 04, 1997; Revised June 09, 1999; Online December 04, 2007


Different experimental techniques have been used in order to describe the flow pattern generated by fifteen jets impinging on a plane wall. The spreading over method revealed the jet influence on the impinged surface, particularly reattachment and detachment lines. The laser sheet visualizations show complex vortical structures such as the ground vortex and secondary rolling-ups near the target plate have been deduced. Velocity measurements have been realised to confirm these observations and to specify the flow pattern. A schema of the flow near the impinged wall is thus drawn.

Copyright © 1999 by The American Society of Mechanical Engineers
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