@inproceedings{oai:jaxa.repo.nii.ac.jp:00006184, author = {水島, 二郎 and 末広, 典久 and Mizushima, Jiro and Suehiro, Norihisa}, 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35回・第36回, JAXA Special Publication: Proceedings of the 35th and 36th JAXA Workshops on Investigation and Control of Boundary-Layer Transition}, month = {Feb}, note = {Instability and transition of flow past a pair of circular cylinders placed parallel to the stream in tandem are investigated by numerical simulation and linear stability analysis. We focus our attention upon the effect of spacing between the two cylinders on the instability of flow. Transition of the flow from a steady to a periodic state is clarified to occur due to a supercritical or subcritical Hopf bifurcation depending upon the length of spacing between the two cylinders. We found that there is a certain length of spacing where the flow becomes most stable, which we evaluated. The origin of abrupt change in drag and lift coefficients reported previously was identified to come from the existence of multiple solutions for the flow., 資料番号: AA0049208002, レポート番号: JAXA-SP-05-012}, pages = {3--6}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {タンデム型2円柱を過ぎる流れの不安定性と遷移}, volume = {JAXA-SP-05-012}, year = {2006} }