微小重力下における水平管内気液二相流の挙動に関する研究(流動様式と感情流の液膜構造)

Material type: その他

Author: 藤井, 照重ほか

Publisher: 日本機械学会

Publication date: 1992-11

Material Format: Digital

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Note (General)：: 出版タイプ： AOIn order to predict various phenomena related to flow and heat transfer in space,it is necessary to carry out experiments under microgravity....

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Material Type: その他
Title: 微小重力下における水平管内気液二相流の挙動に関する研究(流動様式と感情流の液膜構造)
Author/Editor: 藤井, 照重
中澤, 武
山田, 浩之
村岸, 治
竹中, 信幸
太田, 淳一
FUJII, Terushige
NAKAZAWA, Takeshi
YAMADA, Hiroyuki
MURAGISHI, Osamu
TAKENAKA, Nobuyuki
OHTA, Junichi
Author Heading: 藤井, 照重
中澤, 武
山田, 浩之
村岸, 治
竹中, 信幸
太田, 淳一
FUJII, Terushige
NAKAZAWA, Takeshi
YAMADA, Hiroyuki
MURAGISHI, Osamu
TAKENAKA, Nobuyuki
OHTA, Junichi
Publication, Distribution, etc.: 日本機械学会
Publication Date: 1992-11
Publication Date (W3CDTF): 1992
Alternative Title: Behavior of a Horizontal Gas-Liquid Two-Phase Flow under Microgravity (Flow pattern and Film Construction in Annular Flow Region)
Periodical title: 日本機械学会論文集. B編
No. or year of volume/issue: 58 555
Volume: 58
Issue: 555
Pages: 3286-3291
Subject Heading: Multiphase Flow
Pipe Flow
Microgravity
Flow Pattern
Void Fraction
Space Equipment
Target Audience: 一般
Note (General): 出版タイプ： AO
In order to predict various phenomena related to flow and heat transfer in space,it is necessary to carry out experiments under microgravity. In this paper,we describe the behavior of a horizontal two-phase flow under microgravity utilizing a drop tower 6.1m in height,which realizes microgravity conditions of less than 0.02G(G=g/go)for about one second when the capsule is falling down. The experiment was carried out in a horizontal transparent acrylic resin tube of 10mm I.D. and 250mm length,using Freon-22 and water as the working fluid,in a superficial gas velocity range of 0.021m/s to 5.05m/s(ReG=58ï〓 1.4Ã 10^4)and a superficial water velocity of 0.022m/s to 0.456m/s(ReL=246ï〓 5.1Ã 10^3). The flow patterns obtained under microgravity were compared with other data under actual microgravity utilizing a drop tower. Furthermore,the base liquid film thickness,the height of waves and the period of waves in the region of annular flow,were obtained from a measured shape of waves. Then,the relationship between these values,gas Reynolds number and liquid film Reynolds number was obtained. Also,the void fraction under microgravity could be expressed using the distribution parameter and the Martinelli parameter.
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): 福井大学 : 福井大学学術機関リポジトリ