IGTC-31 Study on the Prevention of Rotating Noise Emitted from Turbo Fan(Session B-2 NOISE AND COMBUSTION OSCILLATION)

スポンサーリンク

概要

• 論文の詳細を見る

• By a modification of reshaping the tongue of the centrifugal fan casing, a substantial effect of noise reduction has been achieved keeping its aerodynamic performance. It was in consideration of the rotating noise due to the interference between the tongue and the delivery flow from the impeller vane. The flow distribution around the tongue were investigated in order to examine the effect of modified tongue by measuring the correlation between the distribution of velocity fluctuations of the wakes and radiated noise. The result was that the conventional shape tongue had high correlation with noise, on the other hand, the modified shape tongue had little. It was proved that the modification of the tongue shape had the effect of breaking the simultaneity of the fluctuations of flow in a direction of the vane width and diminishing the strength of the noise source.

• 公益社団法人日本ガスタービン学会の論文

著者

• Hirokawa S.

  Dept Of Mechanical Engineering Hosei University

• Minorikawa G.

  Dynamics Research Dept., Ebara Research Co., Ltd.

• Suzuki S.

  Dept of Mechanical Engineering, Hosei University

• Kawai N.

  Dept of Mechanical Engineering, Hosei University

• Minorikawa G.

  Dynamics Research Dept. Ebara Research Co. Ltd.

関連論文

• IGTC-31 Study on the Prevention of Rotating Noise Emitted from Turbo Fan(Session B-2 NOISE AND COMBUSTION OSCILLATION)

スポンサーリンク