Gravity Effect on the Compositional Separation by Thermal Diffusion in a Rectangular Flow Channel
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- Arima Hirofumi
- Interdisciplinary Graduate School of Engineering Sciences Kyushu University
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- Moriyama Shinya
- Interdisciplinary Graduate School of Engineering Sciences Kyushu University
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- Sato Tsuneyuki
- Institute of Advanced Material Study Kyushu University
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- Imaishi Nobuyuki
- Institute of Advanced Material Study Kyushu University
Bibliographic Information
- Other Title
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- 矩形流路内の熱拡散濃度分離現象に及ぼす重力の影響
- クケイ リュウロナイ ノ ネツ カクサン ノウド ブンリ ゲンショウ ニ オヨ
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Abstract
A compositional separation by thermal diffusion phenomena (Soret effect) in a locally heated rectangular flow channel under 1G and microgravity condition was investigated experimentally and theoretically. Parabolic flight experiments on thermal diffusion were conducted using binary gas mixture systems of He-SF_6 and Ne-SF_6. Under the conditions of various G-levels, the local gas mixture was sampled through a fused quartz tube (75・m I.D. and 90cm in length) inserted into the flow channel, and analyzed by means of a quadrupole mass spectrometer evacuated by a turbo molecular pump and diaphragm type dry vacuum pump. Gas flow, heat and mass transfer in a rectangular flow channel under 1G and ・G were also predicted numerically using a steady state three-dimensional simulation code. The calculated results of the concentration distribution in the channel agreed well with the experimental ones under almost all conditions except for the microgravity Ne-SF_6 system.
Journal
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- 九州大学機能物質科学研究所報告
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九州大学機能物質科学研究所報告 12 (1), 21-27, 1998-07-31
Institute of Advanced Material Study Kyushu University
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Details 詳細情報について
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- CRID
- 1390290699812243200
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- NII Article ID
- 110006177541
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- NII Book ID
- AN10060378
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- ISSN
- 09143793
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- DOI
- 10.15017/7890
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- HANDLE
- 2324/7890
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- NDL BIB ID
- 4544949
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- Abstract License Flag
- Allowed