The Affect of Wake Flow Instability on Flow Past an Offset-fin Array
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- XI G.N.
- Dept. of Mech. Engng. Kyoto Univ.
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- FUTAGAMI S.
- Dept. of Mech. Engng. Kyoto Univ.
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- HAGIWARA Y.
- Dept. of Mech. Engng. Kyoto Univ.
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- SUZUKI K.
- Dept. of Mech. Engng. Kyoto Univ.
Bibliographic Information
- Other Title
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- 不安定化したオフセットフィン流れの観察
Description
Flow characteristics in an offset-fin array was studied by means of flow visualization. When the Reynolds number based on fin thickness t exceeds a critical value, the wake of a fin becomes unsteady, exhibiting wavy or vortical motion. When instability occures in the wake of a fin, the boundary layer and flow characteristics around the downstream fins are affected. It is found that the wake flow instability is strongly dependent on the Reynolds number based on fin thickness as well as on the fin pitch 2S. It is also found that the frequency of discrete vortices varies with a change in Reynolds number, but, more noticeably, varies with a change in the parameter t/2S.
Journal
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- Journal of the Visualization Society of Japan
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Journal of the Visualization Society of Japan 10 (1Supplement), 27-30, 1990
The Visualization Society of Japan
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Details 詳細情報について
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- CRID
- 1390001204619623552
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- NII Article ID
- 130003647959
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- ISSN
- 1884037X
- 09164731
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed