Noise Reduction on a Low Reynolds Number Propeller
نویسندگان
چکیده
Abstract With the mass application of drones in daily work, more attention has been paid to noise problem. The generation mechanism low Reynolds number propellers is studied this paper. It found that there are laminar separation bubbles on suction surface, causing an increase broadband noise. Leading edge boundary layer trips added remove bubbles. Finally, experimental measurements indicate isolated propeller reduction up 5 dBA. still a 1.5 dBA full-loaded hovering drone test, which brings many conveniences for work.
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ژورنال
عنوان ژورنال: Journal of physics
سال: 2023
ISSN: ['0022-3700', '1747-3721', '0368-3508', '1747-3713']
DOI: https://doi.org/10.1088/1742-6596/2569/1/012050