書誌事項
- タイトル別名
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- Acoustic Phenomena Generated by Interactionbetween a Supersonic Jet Impinging to a Flat Plate and a Vortex
- ナナメ ヘイバン ニ ショウトツ スル チョウオンソク フンリュウ ト ウズ ノ カンショウ カラ ショウジル オンキョウ ゲンショウ
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説明
Interaction between a rocket exhaust plume and a flame deflector causes intense acoustic waves during a launch vehicle liftoff. The prediction and the reduction of these waves are quite important for the safe transportation of the payloads. Past studies discussing acoustic phenomena of a supersonic axisymmetric jet impinging on an inclined flat plate reported three types of acoustic waves, and also indicated that interaction between the large scale disturbance at the shear layer and the flowfield can be attributable to the acoustic wave generation. However, the generation mechanism of the acoustic wave perpendicular to the plate has not been clarified. In this study, a supersonic impinging planer jet overlayed with an isolated disturbance is simulated numerically and the resulting acoustic waves are discussed in detail. The numerical result shows three acoustic waves similar to those observed in Akamine et al.'s experiment. These waves seem to be generated from the interaction between the disturbance convected over the shear layer and the near-wall shock structures.
収録刊行物
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- 日本航空宇宙学会論文集
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日本航空宇宙学会論文集 66 (1), 24-30, 2018
一般社団法人 日本航空宇宙学会
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詳細情報 詳細情報について
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- CRID
- 1390282679447471616
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- NII論文ID
- 130006337715
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- NII書誌ID
- AA11307372
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- ISSN
- 24323691
- 13446460
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- NDL書誌ID
- 028834163
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- 本文言語コード
- ja
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- JaLC
- NDLサーチ
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- 使用不可