並列タイトル等Numerical Simulation of Thermal Convection in a Rectangular Duct Flow
タイトル(掲載誌)航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-14
一般注記Numerical simulation of thermal convection in a horizontal rectangular duct flow heated from both bottom and sides is carried out using a method based on the Fourier spectral method. It is shown that the convective secondary flow is induced not only by the Rayleigh-Benard instability but by the natural convection near the duct's side walls. As a result, we have almost stationary longitudinai convective rolls in the flow when the Reynolds numbers are rather larger values, 500 and 220. On the other hand, when the Reynolds numbcr is a smaller value, 90, the rolls fluctuate chaotically in space and time; then the time-averaged secondary flow is almost vanishing and the fluid temperature widely constant in the central part of duct.
資料番号: NALSP0014033
レポート番号: NAL SP-14
一次資料へのリンクURLhttps://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43466&item_no=1&attribute_id=31&file_no=1
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)
提供元機関・データベース宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ