@inproceedings{oai:jaxa.repo.nii.ac.jp:00006183, author = {石川, 仁 and Ishikawa, Hitoshi}, 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 = {The purpose of this study is to investigate flow characteristics of a living tree as the basic research of the wind-break forest. A gold crest conifer, a kind of garden plant, was used as the test piece in the wind tunnel experiment. Drag force of a living tree was measured by the six-axis force torque sensor. Drag coefficient of a living tree was decreased as mean flow velocity increased in the range of 5-15 m/s. Wake profile behind a living tree was also measured by means of the wind tunnel experiment. The reverse flow was found at downstream region of just behind tree. Because main flow passes through the crown leaves of a living tree and flow velocity decreased calmly. In being decreased, it makes to retard the development of the shear layer., 資料番号: AA0049208001, レポート番号: JAXA-SP-05-012}, pages = {1--2}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {樹木の流体力学特性について}, volume = {JAXA-SP-05-012}, year = {2006} }