@inproceedings{oai:jaxa.repo.nii.ac.jp:00003396, author = {松本, 勝 and 石崎, 浩 and Matsumoto, Masaru and Ishizaki, Hiroshi}, book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: Proceedings of the First International Symposium on Flutter and its Application}, month = {Mar}, note = {First International Symposium on Flutter and its Application (May 15-17, 2016. Mielparque-tokyo), Minato-ku, Tokyo, Japan, The “stall-type galloping(STG)” of bluff bodies is studied in contrast with the well-known conventional “reattachment type pressure distribution flow Galloping (RPDFG)”. STG can be excited by unsteady switching of a generation of the separated bubble(SB) on a side face of a body generated by a flow reattachment on a side face and destruction of SB, because of a flow-change to a separated type from reattachment type. Some bluff bodies similarly show the peculiar characteristics the “stall” with an airfoil at the critical stalling angle, those are a drastic change of a drag, a drastic change Strouhal number, appearance of a negative slope of the lift associated with a pitching angle, and a significant low frequency fluctuation of the flow and the lift force. The “stall” of bluff bodies appears mostly associated to the angle of attack to the flow similarly with an airfoil, but the “stall” of a circular, observed at a range of critical Reynolds number is a particular case. STG would be excited by an unsteady generation/destruction of SB, in consequence, STG would not be explained by the quasi-steady theory, and it might be characterized by a low frequency flow/vortex produced by the “stall”. Some bluff bodies such as, a circular cylinder with protuberance(s), a yawed circular cylinder, a circular cylinder with a splitter plate in a wake, a snow-accreted transmission line, a rectangular cylinder with B/D=2.8, a circular cylinder at the critical Reynolds number and so on show STG., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA1630046003, レポート番号: JAXA-SP-16-008E}, pages = {45--54}, publisher = {宇宙航空研究開発機構(JAXA), Japan Aerospace Exploration Agency (JAXA)}, title = {Stall-type galloping of bluff bodies}, volume = {JAXA-SP-16-008E}, year = {2017} }