Experimental Study on the Half Flat Tip Serrated Trailing Edge for Stand Fan
نویسندگان
چکیده
The effectiveness of half flat tip serrations on reducing fan blade trailing edge noise was investigated using experimental methods. experiments were conducted at an anechoic chamber under different rotating speeds. Numerical simulations performed to investigate the mass flow rate generated by serrated and compared with that baseline fan. results showed overall amount reduction decreased increasing distance away from It found not proportional speed where it most effective 263 rpm 2041 reductions about 3.1 dBA 3.5 dBA, respectively. This phenomenon might be depended how vortex would interact speeds reduced highest which 18% this accompanied dBA.
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ژورنال
عنوان ژورنال: Archives of Acoustics
سال: 2023
ISSN: ['2300-262X', '0137-5075']
DOI: https://doi.org/10.24425/aoa.2020.133156