@inproceedings{oai:jaxa.repo.nii.ac.jp:00038196, author = {永田, 拓 and 大橋, 央 and 代田, 幸平 and Nagata, Hiroshi and Ohashi, Hisashi and Shirota, Kohei}, book = {航空宇宙技術研究所特別資料: 境界層遷移の解明と制御研究会講演論文集 第29回・第30回, Special Publication of National Aerospace Laboratory: Proceedings of the 29th and 30th NAL Workshops on Investigation and Control of Boundary-Layer Transition}, month = {Dec}, note = {Various types of vortex streets are formed behind a circular cylinder oscillated streamwise in a uniform flow. The vortex streets behind the cylinder were classified into seven types including Net-type and P-type vortex streets in the previous paper. These types of the vortex-streets appear in the lock-in range referring to the frequency of the oscillating cylinder and that of vortex shedding. The Net-type vortex streets have a peculiar but a stable 3D vortex structure. While P-type vortex streets have a stable 2D vortex structure. In this report the formation processes of the vortex streets in the lock-in range were studied by mean of flow visualization experiments. By comparing the flow patterns in the near wake to form Net type and P-type vortex streets, the mechanism how to form the two different types vortex streets in a lock-in range is discussed., 資料番号: AA0045947005, レポート番号: NAL SP-56}, pages = {15--18}, publisher = {航空宇宙技術研究所, National Aerospace Laboratory (NAL)}, title = {振動円柱後流中の渦列のLock-in帯域における形成過程}, volume = {56}, year = {2002} }