プロペラファン周りの流れ場と騒音の関係に関する実験的研究 : 動作点による翼端流れ挙動の違いと騒音の関係について(流体工学,流体機械)
書誌事項
- タイトル別名
-
- Experimental Research into Relation between Propeller Fan's Flow Field and Noise : Relationships between Difference of Tip Flow Behavior in Each Operation Point and Its Noise(Fluids Engineering)
- プロペラファン周りの流れ場と騒音の関係に関する実験的研究--動作点による翼端流れ挙動の違いと騒音の関係について
- プロペラファン マワリ ノ ナガレバ ト ソウオン ノ カンケイ ニ カンスル ジッケンテキ ケンキュウ ドウサテン ニ ヨル ヨク タン ナガレ キョドウ ノ チガイ ト ソウオン ノ カンケイ ニ ツイテ
この論文をさがす
抄録
The difference of the tip flow behavior in each operation points and the relation to the noise of the propeller fan with half-open-type casing were investigated through the measurement of the flow field of downstream by use of hot-wire probe and the pressure fluctuation on the casing wall with small pressure sensors. As a result, following conclusions were obtained. As flow ratio becomes smaller, the distance from the blade to tip vortex increases, and tip vortex interferes with casing more upstream. Velocity fluctuation at the downstream near the blade tip and pressure fluctuation on the casing wall have high correlation with the noise less than 200Hz, which indicates the tip vortex becomes the noise source less than 200Hz. The rate of contribution of the noise less than 200Hz to overall noise increases as flow ratio becomes smaller, and the control of the tip vortex is more important in small flow ratio to reduce the fan noise.
収録刊行物
-
- 日本機械学会論文集Ｂ編
-
日本機械学会論文集Ｂ編 76 (767), 1042-1047, 2010
一般社団法人 日本機械学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001206295547136
-
- NII論文ID
- 110007682117
-
- NII書誌ID
- AN00187441
-
- ISSN
- 18848346
- 03875016
-
- NDL書誌ID
- 10783905
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可