Effects of Roughness Strip and Acoustic Sensor Height on Subsonic Boundary Layer by Experiment

Ning Zong; Guang Jun Yang; Jing Sun

doi:10.4028/www.scientific.net/AMM.421.459

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 421Effects of Roughness Strip and Acoustic Sensor...

Effects of Roughness Strip and Acoustic Sensor Height on Subsonic Boundary Layer by Experiment

Abstract:

According to the measurement requirements of acoustic fatigue load on aft fuselage structure and the external installation restriction of the acoustic sensor on aircraft surface, an acoustic sensor is installed on the silencing jet test plate with reference to body type of the real aircraft. A dynamic test and analysis system combined hot wire wind speed measurement and acoustic spectrum measurement is built up for the combined experiments with different acoustic sensor height and various boundary layer flow structure at subsonic flow condition. Turbulence development of different boundary layer is analyzed. The test result can be coordinated with the local measurement to aircraft flow structure so as to estimate the effect of acoustic sensor on the flow field.

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Periodical:

Applied Mechanics and Materials (Volume 421)

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459-463

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.421.459

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Online since:

September 2013

Authors:

Ning Zong, Guang Jun Yang, Jing Sun

Keywords:

Acoustic Sensor, Boundary Layer, Roughness Strip, Subsonic Experiment

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