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微小重力下における下側加熱された水平矩形流路内の熱流動

発表形態:
原著論文
主要業績:
その他
単著・共著:
共著
発表年月:
1998年
DOI:
会議属性:
指定なし
査読:
有り
リンク情報:
CiNii

日本語フィールド

著者:
田之上健一郎, 有馬博史, 森山伸也, 佐藤恒之, 今石宣之, 森田知二
題名:
微小重力下における下側加熱された水平矩形流路内の熱流動
発表情報:
機械学会論文集B 巻: 64 号: 624 ページ: 2608-2614
キーワード:
Natural Convection, Heat Transfer, Flow Visualization, Microgravity, Secondary Flows, Transient Flow
概要:
抄録:
Gas flow and heat transfer in a horizontal flow channel partially heated from below under 1G and reduced gravity have been studied experimentally and theoretically. Flow visualization and temperature measurements were conducted using short term microgravity facilities, i. e. a drop shaft and parabolic flights. Transient behavior of the gas flow patterns in accordance to the time dependent gravity changes were visualized by means of the suspended TiO_2 particles, illuminated by a laser sheet. Observed flow patterns showed fairly good agreement with the results of three dimensional unsteady numerical simulations. The criteria for the onset of transverse and longitudinal roll cells were mapped on Grashof number (Gr) vs. Reynolds number (Re) plane and well explained by the correlation lines previously reported by the authors based on steady two dimensional numerical simulations.

英語フィールド

Author:
TANOUE Kenichiro, ARIMA Hirofumi, MORIYAMA Shinya, SATO Tsuneyuki, IMAISHI Nobuyuki, MORITA Tomoji S.
Title:
Gas Flow and Heat Transfer Characteristics of a Horizontal Flow Channel Partially Heated from Below under Microgravity
Announcement information:
Transactions of the Japan Society of Mechanical Engineers. B Vol: 64 Issue: 624 Page: 2608-2614
Keyword:
Natural Convection, Heat Transfer, Flow Visualization, Microgravity, Secondary Flows, Transient Flow
An abstract:
Gas flow and heat transfer in a horizontal flow channel partially heated from below under 1G and reduced gravity have been studied experimentally and theoretically. Flow visualization and temperature measurements were conducted using short term microgravity facilities, i. e. a drop shaft and parabolic flights. Transient behavior of the gas flow patterns in accordance to the time dependent gravity changes were visualized by means of the suspended TiO_2 particles, illuminated by a laser sheet. Observed flow patterns showed fairly good agreement with the results of three dimensional unsteady numerical simulations. The criteria for the onset of transverse and longitudinal roll cells were mapped on Grashof number (Gr) vs. Reynolds number (Re) plane and well explained by the correlation lines previously reported by the authors based on steady two dimensional numerical simulations.


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