Aeroacoustic sources of motorcycle helmet noise
(Color online) Wind tunnel facility.
Grid 1 hot wire measurement locations.
Grid 2 hot wire measurement locations.
System model for partial coherence processing.
Mean velocity and turbulence intensity on grid 1.
(Color online) Mean velocity and turbulence intensity .
Wake spectral content 0–50 Hz.
Wake spectral content 100–200 Hz.
Wake spectral content 500–1000 Hz.
Correlation measurement locations. Diamonds, boundary layer measurement; dots, wake measurement.
Partial coherence versus speed.
Partial coherence versus head angle, .
Mannequin head dimensions.
Conditioning sequence for a three-input system.
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