Frequency response correction of hot-film measurements in a turbulent airflow |
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| Authors: | C Ljus B Johansson A -E Almstedt |
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| Institution: | Department of Thermo and Fluid Dynamics Chalmers University of Technology S-412 96 G?teborg, Sweden, SE
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| Abstract: | Turbulence measurements were performed in a fully developed turbulent pipe flow using a wedged-shaped hot-film probe. The
dynamic sensitivity of hot-film probes is frequency dependent and cannot be obtained from static calibration. As it is complicated
to make a dynamic calibration, a correction method for the turbulent energy spectrum is used instead. The measurements were
compared with hot-wire turbulence measurements and show good agreement.
Received: 28 May 1999/Accepted: 24 August 1999 |
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