The surface hot wire as a means of measuring mean and fluctuating wall shear stress |
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Authors: | D Sturzebecher S Anders W Nitsche |
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Institution: | Technische Universit?t Berlin Institut für Luft- und Raumfahrt F2, Marchstra?e 12–14, 10587 Berlin, Germany e-mail: w.nitsche@tu-berlin.de, DE
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Abstract: | The paper describes some applications of a wall shear stress sensor technique which is based on hot-wire anemometry. The
“surface hot wire” is a flush-mounted thermal resistive wire with a tiny slot underneath. The arrangement of this sensor guarantees
an improved signal-to-noise ratio compared to a common surface hot film. The setup and the application of single sensors and
of surface hot-wire arrays are shown. Some results are presented that were acquired in several experiments in the field of
laminar-turbulent transition.
Received: 26 May 2000/Accepted: 7 February 2001 |
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