An Experimental Study on Noise Reduction of Axial Flow Fans : 1st Report, Effects' of some parameters on blade elements

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概要

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• Study on noise reduction of the axial-flow fans was carried out, varying principal assumed parameters such as the chord length of the blade, the camber of the airfoil, the position of maximum camber, and the surface pressure distribution of the airfoil. A separated flow on the surface of the tow-dimensional airfoil was observed with use of the Schlieren divice, and measurements were made of the strength of turbulence with use of a hot wire probe so as to determine their correlation with fan noise. The airfoil profile was determined by calculation using an optimum pressure distribution. As a result, the relations between the parameters and fan noise reduction have been clarified.

• 一般社団法人日本機械学会の論文

著者

• Suzuki Shoji

  Director Noise Control Engineering Center Central Research Institute Ebara Corporation

関連論文

• Noise Characteristics in Partial Discharge of Centrifugal Fans : 1st Report, Low-frequency Noise due to the Rotating Stall
• An Experimental Study on Noise Reduction of Axial Flow Fans : 1st Report, Effects' of some parameters on blade elements

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