対流を伴う矩形ダクト流の数値シミュレーション

Material type: 規格・テクニカルリポート類

Author: 山本, 稀義ほか

Publisher: 航空宇宙技術研究所

Publication date: 1990-11

Material Format: Digital

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Note (General)：: 出版タイプ： NANumerical simulation of thermal convection in a horizontal rectangular duct flow heated from both bottom and sides is carried out using a met...

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Material Type: 規格・テクニカルリポート類
Title: 対流を伴う矩形ダクト流の数値シミュレーション
Author/Editor: 山本, 稀義
細川, 巌
田中, 義規
Yamamoto, Kiyoshi
Hosokawa, Iwao
Tanaka, Yoshinori
Author Heading: Yamamoto, Kiyoshi
Hosokawa, Iwao
Tanaka, Yoshinori
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1990-11
Publication Date (W3CDTF): 1990
Alternative Title: Numerical Simulation of Thermal Convection in a Rectangular Duct Flow
Periodical title: 航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-14
No. or year of volume/issue: 14
Volume: 14
Pages: 209-214
ISSN (Periodical Title): ISSN : 0289-260X
Target Audience: 一般
Note (General): 出版タイプ： NA
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
Periodical Title (NCID): AN10097345
https://ci.nii.ac.jp/ncid/AN10097345
Data Provider (Database): 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）
https://irdb.nii.ac.jp
Original Data Provider (Database): 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