Measurement and Propagation of Supersonic Aeroacoustic Noise Sources Using Continuous Scanning Measurement Technologies and the Fast Multipole Boundary Element Method

ATA Engineering has developed a technique that uses a continuous scanning robot to take high-resolution measurements of supersonic jet plumes. The jet noise was modeled using a reduced-order model and propagated to far field microphone locations in the free-field. It is shown that the pressure at th...

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Bibliographic Details
Main Authors: Yang, Michael Y., Vold, Havard, Shah, Partihv
Format: Conference Proceeding
Language:English
Online Access:Request full text
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Summary:ATA Engineering has developed a technique that uses a continuous scanning robot to take high-resolution measurements of supersonic jet plumes. The jet noise was modeled using a reduced-order model and propagated to far field microphone locations in the free-field. It is shown that the pressure at these microphones was successfully reconstructed across a range of frequencies. The capability to make predictions when scattering surfaces are present is also demonstrated using the fast multipole boundary element method in VA One. This work was originally designed for supersonic jets, but it can also be used for static firing tests of launch vehicle engines. The measured data could then be used for analytic predictions of the liftoff environment.
ISSN:1939-800X
DOI:10.1121/1.3673338