Extension of the concept of Ffowcs-Williams and Hawkings type wave extrapolation to non-trivial flow effects and exterior surfaces
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DOI: 10.1177/1475472x221107365
Abstract: In appreciation of Ffowcs-Williams and Hawkings’ seminal contribution on describing the sound radiation from moving objects, this article discusses a concept of taking into account local non-trivial flow effects on the sound propagation. The approach… read more here.
Keywords: flow effects; geometry; flow; ffowcs williams ... See more keywords
Airframe noise predictions using the Ffowcs Williams-Hawkings equation
Sign Up to like & getrecommendations! Published in 2022 at "International Journal of Aeroacoustics"
DOI: 10.1177/1475472x221107366
Abstract: This paper considers potential sources of error when using the Ffowcs Williams-Hawkings equation to make predictions of airframe noise, which entails a relatively low-speed, uniform incoming flow encountering geometry of varying complexity. Numerical simulations are… read more here.
Keywords: using ffowcs; airframe noise; hawkings equation; ffowcs williams ... See more keywords