@techreport{oai:jaxa.repo.nii.ac.jp:00041377, author = {中林, 功一 and Sha, W. and 菅原, 里志 and Nakabayashi, Koichi and Sha, W. and Sugawara, Satoshi}, month = {Dec}, note = {27-28 Sept. 1999 (25th). 27-28 Mar. 2000 (26th), 27-28 Sept. 1999 (25th). 27-28 Mar. 2000 (26th), 層流-乱流遷移過程における再層流化流の受容性を検討した。回転する内球を持つ球クエット流で隙間比β=0.14を対象に、1個のトロイダル型TG(Taylor-Goertler)渦を使って超臨界流モードの中に外部擾乱を導入した。トロイダル型TG渦、スパイラル型TG渦および進行波の初生レイノルズ数は外部擾乱の影響を受けない。しかし、再層流化の初生レイノルズ数はこれら渦の影響を受ける。外部擾乱に対する超臨界撹乱モードの受容性は低Re領域よりも再層流化Re領域で大きい。, Receptivity of relaminarizing flow in the laminar-turbulent transition process has been investigated by the introduction of outside disturbances into the super-critical flow modes with one toroidal TG (Taylor-Goertler) vortex for clearance ratio beta = 0.14 in the spherical Couette flow with an inner rotating sphere. The onset Reynolds number of toroidal TG vortex, spiral TG vortex and traveling waves are not influenced by the outside disturbance. However, the onset Reynolds number of the relaminarization is influenced by them. The receptivity of the super-critical disturbance modes to the outside disturbances is greater in the relaminarizing Re-range than the lower Re-range., 資料番号: AA0028636017, レポート番号: NAL SP-47}, title = {球クエット系の層流-乱流遷移における撹乱消滅の受容性}, year = {2000} }