Research on Aerodynamic Noise Characteristics and Blade Tip Noise Reduction of Mining Low-Pressure Axial Flow Fan
Taking FKZ-4-10 mining low-pressure axial fan as an example,this article introduces the aerodynamic noise characteristics and blade tip noise reduction analysis method of a mining low-pressure axial fan.This method utilizes the Delay Separated Vortex Model(DDES)and the Fox Williams and Hawkins Equation Model(FW-H)to construct an axial flow fan model,and then analyzes the radiation noise characteristics and sound source characteristics of the axial flow fan.Finally,based on this,the axial flow fan is optimized from aspects such as blade tip clearance and blade tip slot opening to achieve the goal of blade tip noise reduction.This method is of great significance for the design of modern low-pressure axial flow fans.
mining low-pressure axial flow fanaerodynamic noise characteristicsblade tip noisenoise reduction
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