Summary
A number of flush mounted surface flow sensor devices (MEMS surface hot-film, surface hot-wire, PVDF sensor and surface fence) have been developed and investigated for applications of wall shear stress measurements in a transonic flow. In order to maximise their robustness, the MEMS hot-film and PVDF sensor were coated with abrasion resistant coatings. Testing of the sensors was carried out in boundary layer flows up to M∞=0.9 in a high speed wind tunnel of the ILR. The sensor characteristics including sensitivity, dynamic response and cut-off frequency were measured. The test results indicate application ranges and advantages of the improved sensor devices. Of the sensor types studied, MEMS hot-films seem to be the best solution for the flow conditions investigated and, with some development, could be used to realise an active boundary layer control system in the medium term.
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© 2001 Springer-Verlag Berlin Heidelberg
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Burkhardt, O., Dinata, U., Warsop, C., Nitsche, W. (2001). New Developments in Surface Flow Sensor Technology within the Framework of AEROMEMS. In: Thiede, P. (eds) Aerodynamic Drag Reduction Technologies. Notes on Numerical Fluid Mechanics (NNFM), vol 76. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45359-8_23
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DOI: https://doi.org/10.1007/978-3-540-45359-8_23
Publisher Name: Springer, Berlin, Heidelberg
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