26th Congress of International Council of the Aeronautical Sciences
including the 8th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference
14 - 19 September 2008, Anchorage, Alaska, USA
Paper ICAS 2008-3.7.1

A WALL SHEAR STRESS MEASUREMENT TECHNIQUE USING THE THERMAL WAKES OF SMALL HEATED SPOTS

I. Rudolph, M. Reyer, W. Nitsche
TU Berlin, Germany

Keywords: wall shear stress, skin friction, infrared thermography, numerical simulation

A wall shear stress measurement technique using the thermal wakes of small heated spots is presented. Experimental and numerical investigations were carried out for two different heating types (constant temperature and constant heat flux), and correlation parameters for the quantification of magnitude and direction of the viscous forces were determined.

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