@inproceedings{oai:jaxa.repo.nii.ac.jp:00005533, author = {松井, 辰彌 and Matsui, Tatsuya}, book = {宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集 第40回, JAXA Special Publication: Proceedings of the 40th JAXA Workshop on Investigation and Control of Boundary-Layer Transition}, month = {Feb}, note = {Drag coefficient of a circular cylinder in a uniform flow shows a steep fall when the Reynolds number increases from about 3.0 x 10(exp 5) to about 3.8 x 10(exp 5) in our experiments. At about Re = 3.6 x 10(exp 5), the drag coefficient curve is not continuous, but has a jump, and also a lift force actually acts on the cylinder. This phenomenon results from the sudden and asymmetric appearance of separation bubbles on both sides of the circular cylinder. The asymmetric formation of separation bubbles is the origin of lift. The Reynolds number, Re = 3.6 x 10(exp 5), is appropriately called the critical Reynolds number for the drag coefficient of a circular cylinder., 資料番号: AA0063908012, レポート番号: JAXA-SP-07-026E}, pages = {39--40}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {On the critical Reynolds number of the drag coefficient for a circular cylinder}, volume = {JAXA-SP-07-026E}, year = {2008} }