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RESEARCH PAPERS

Experimental Investigation of Boundary Layer Separation With Heated Thin-Film Sensors

[+] Author and Article Information
P. Pucher, R. Göhl

MTU Motoren- und Turbinen-Union München GmbH, Munich, Federal Republic of Germany

J. Turbomach 109(2), 303-309 (Apr 01, 1987) (7 pages) doi:10.1115/1.3262103 History: Received March 07, 1986; Online November 09, 2009

Abstract

The heated thin-film method was adapted to meet the requirements of investigations on boundary layer behavior in a turbine rig. Special multisensor probes of vaporized nickel on a polyimide foil were developed and applied to the vanes. Basic experiments with an airfoil in a free stream were carried out and a reliable interpretation of the thin-film results was found by comparison with pressure distribution, flow visualization, and laser measurements. It can be shown that this measuring device is a suitable method for the investigation of separation bubbles and boundary layer transition.

Copyright © 1987 by ASME
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