LES investigation of the wavy leading edge effect on cavitation noise

• DOI: 10.1016/j.ultsonch.2024.106780
• Publication Date: 2024-01-22T17:10:54Z
• Authors: Zhongpo Yang; Xincheng Wang; Xiaotao Zhao; Huaiyu Cheng; Bin Ji
• Keywords: Leading edge

This paper investigates the noise reduction performance of biomimetic hydrofoils with wavy leading edge and corresponding mechanisms. We employ Large Eddy Simulation (LES) approach permeable Ffowcs Williams-Hawkings (PFW–H) method to predict cavitation around baseline hydrofoils. The results show that can effectively reduce high-frequency noise, but has little effect on low-frequency noise. Further analyses discussions deal main source for is cavity volume acceleration, while it. sources, related surface pressure fluctuations turbulence characteristics, are significantly suppressed by edge, thus decreasing intensity. Our investigation indicates great prospects technique.