TY - GEN
T1 - Fluctuating shear stress calibration method using a channel flow
AU - Cole, Daniel C.
AU - Jonson, Michael Lester
AU - Sharp, Kendra V.
PY - 2010/12/1
Y1 - 2010/12/1
N2 - Fluctuating wall shear stress causes vibration and radiated noise from a structure. In the past wall shear stress has been measured indirectly using hot wires and hot films. Recently direct shear sensors have been developed. In this paper a calibration device consisting of a 305 mm × 60 mm × 5 mm channel filled with glycerin is used to calibrate a direct shear stress sensor with amplitudes up to 10 Pa of shear stress over a frequency range from 10 Hz to 1 kHz. The analytically known flow field caused by an oscillating plate 5 mm from the sensor is verified using laser Doppler velocimetry (LDV). The flow field is derived using a frequency-wavenumber approach thereby allowing for a known spatial and temporal field to be generated by specifying a derived plate vibration.
AB - Fluctuating wall shear stress causes vibration and radiated noise from a structure. In the past wall shear stress has been measured indirectly using hot wires and hot films. Recently direct shear sensors have been developed. In this paper a calibration device consisting of a 305 mm × 60 mm × 5 mm channel filled with glycerin is used to calibrate a direct shear stress sensor with amplitudes up to 10 Pa of shear stress over a frequency range from 10 Hz to 1 kHz. The analytically known flow field caused by an oscillating plate 5 mm from the sensor is verified using laser Doppler velocimetry (LDV). The flow field is derived using a frequency-wavenumber approach thereby allowing for a known spatial and temporal field to be generated by specifying a derived plate vibration.
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U2 - 10.1115/IMECE2010-37526
DO - 10.1115/IMECE2010-37526
M3 - Conference contribution
AN - SCOPUS:84881453402
SN - 9780791844502
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 113
EP - 123
BT - ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
T2 - ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
Y2 - 12 November 2010 through 18 November 2010
ER -