並列タイトル等Coherent Vortex Structure in a Two-Dimensional Excited Jet
タイトル（掲載誌）航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-15
一般注記Experimental investigation was made for the structure of coherent vortices in a two-dimensional excited jet with a parabolic velocity distribution. Two characteristic modes of velocity fluctuation in the two-dimensional jet, i,e. the symmetrical and anti-symmetrical mode, were acoustically excited to improve the reproducibility in appearance of the vortex arrangement in each exciting mode. The employment of conditional sampling and phase averaging for the hot-wire outputs made it possible to catch the coherent vortex arrangements was clearly observed in vorticity contour maps. In each exciting mode, the convection velocity determined by the vorticity contour map was kept almost constant during the coherent vortex traveled downstream through the linear interaction, nonlinear interaction and randomizing regions.
資料番号: NALSP0015002
レポート番号: NAL SP-15
一次資料へのリンクURLhttps://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43476&item_no=1&attribute_id=31&file_no=1
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
提供元機関・データベース宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ