@inproceedings{oai:jaxa.repo.nii.ac.jp:00004903, author = {吉澤, 徴 and 阿部, 浩幸 and 藤原, 仁志 and 溝渕, 泰寛 and 松尾, 裕一 and Yoshizawa, Akira and Abe, Hiroyuki and Fujiwara, Hitoshi and Mizobuchi, Yasuhiro and Matsuo, Yuichi}, book = {宇宙航空研究開発機構特別資料: 第41回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2009論文集, JAXA Special Publication: Proceedings fo 41st Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2009}, month = {Feb}, note = {平成21年6月18-19日. 宇宙航空研究開発機構調布航空宇宙センター, 18 June-19 June, 2009, Japan Aerospace Exploration Agency, A Reynolds-averaged modeling is made of the turbulent-diffusion suppression mechanism in a swirling pipe flow. The combined effect of mean vorticity and streamwise structure variation is incorporated into the characteristic time scale, on the basis of which the turbulent-viscosity model for the Reynolds stress is constructed. The model is incorporated into the two-equation modeling. Thought the computational test, it is shown that some primary characteristics of a swirling pipe flow may be reproduced within the framework of the isotropic turbulent-viscosity representation. This finding indicates that the newly-introduced effect is a promising candidate for the mechanism of the radial turbulent-transport suppression of axial and circumferential momenta., 資料番号: AA0064672005, レポート番号: JAXA-SP-09-011}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {旋回流における乱流拡散抑制機構のレイノルズ平均モデリング}, volume = {JAXA-SP-09-011}, year = {2010} }