@techreport{oai:jaxa.repo.nii.ac.jp:00041364, author = {佐々, 浩司 and 松永, 修二 and 蒔田, 秀治 and Sassa, Koji and Matsunaga, Shuji and Makita, Hideharu}, month = {Dec}, note = {27-28 Sept. 1999 (25th). 27-28 Mar. 2000 (26th), 27-28 Sept. 1999 (25th). 27-28 Mar. 2000 (26th), 安定成層高レイノルズ数乱流場を小型風洞内で発生させ、浮力により影響される乱流の普遍的構造を調べた。実現した流れ場において、瞬間速度成分と温度の同時計測により基本的統計特性を評価した。結果はFroude数が大きいにも拘らず浮力により鉛直揺動が抑制されることを示した。乱流レイノルズ数、R(sub λ)は約300であり、速度および温度の両スペクトル中に普遍的平衡領域を明確に認めた。, A stably stratified and high-Reynolds-number turbulence field is generated in a small wind tunnel, to examine universal turbulence structure affected by buoyancy. Primary statistical characteristics are evaluated in the realized flow field by simultaneous measurements of instantaneous velocity components and temperature. Results show the suppression of vertical fluctuation by buoyancy in spite of large Froude number. Turbulence Reynolds number, R(sub lambda), is about 300 and universal equilibrium range is clearly observed in both velocity and temperature spectra., 資料番号: AA0028636004, レポート番号: NAL SP-47}, title = {レイノルズ数の高い安定成層乱流の特性}, year = {2000} }