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- W3040623154 abstract "Abstract The CFD simulation model of unequal and equidistant blades is established, and the aerodynamic performance and aerodynamic noise of the model are analyzed. The noise spectrums of the unequally and equally spaced fan are compared and studied. The conclusion is as follows: the unequal distribution of blades leads the fan modulation phenomenon at the passage frequency, so the unequally spaced fan can reduce the discrete noise in the sensitivity range of human ear. By comparing the performance curves of the unequal fan and the equidistant fan, we can see that as long as the relative change value of the uneven distribution of the blades is within a certain constraint range, the unequal fan will not have a great impact on the aerodynamic performance. Even in some flow areas, the aerodynamic performance of fans has been slightly improved, and it is necessary to reasonably design the distribution of unequal blades." @default.
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- W3040623154 date "2020-05-01" @default.
- W3040623154 modified "2023-10-18" @default.
- W3040623154 title "Study on Noise Reduction of Fans with Uneven Blade Spacing" @default.
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- W3040623154 doi "https://doi.org/10.1088/1755-1315/508/1/012162" @default.
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