What is it about?
The drag reduction performance of riblets, viscous drag-reducing devices inspired by shark skin, was investigated through direct numerical simulations under subsonic and transonic speed conditions. The results indicate that the performance of riblets can be enhanced at the cruising speed of transonic passenger aircraft by accounting for compressibility effects in their design.
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Why is it important?
Most previous studies on the drag reduction performance of riblets have been conducted under subsonic conditions, leaving the effects of compressibility poorly understood. This study’s findings highlight the importance of accounting for compressibility in riblet design and offer new guidelines for their more efficient application in aircraft.
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This page is a summary of: Viscous Drag Reduction Effect of Riblet at Cruising Speed of Transonic Aircraft, July 2024, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2024-3588.
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