What is it about?
Porous materials are able to reduce the noise produced by an airfoil interacting with a turbulent inflow, but we have not fully clarified why yet. This paper elucidates the noise-reduction mechanisms associated with this passive sound-control strategy.
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Why is it important?
Our study provides valuable guidelines for designing more efficient and optimized passive noise-mitigation strategies based on porous materials. Now that we know where and to what extent we should treat the surface of a wing profile, we are ready to develop the next generation of porous airfoils!
Perspectives
I hope this article will be able to inspire researchers who are willing to strive for quieter and more sustainable aviation.
Riccardo Zamponi
Technische Universiteit Delft
Read the Original
This page is a summary of: Investigation of Curle's Dipolar Sources on a Porous Airfoil Interacting with Incoming Turbulence, June 2022, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2022-2985.
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