Heat Teansfer and Flow Characteristics in a Rotating Disc System.
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- Ogino Fumimaru
- Department of Chemical Engineering, Kyoto University
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- Saito Yasushi
- Research Reactor Institute, Kyoto University
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- Yoshida Takeshi
- Department of Chemical Engineering, Kyoto University
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- Masuda Kazuaki
- Department of Chemical Engineering, Kyoto University
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- Mizuta Kei
- Department of Chemical Engineering, Kyoto University
Bibliographic Information
- Other Title
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- 回転円板上流れの伝熱と流動特性
- カイテン エンバンジョウ ナガレ ノ デンネツ ト リュウドウ トクセイ
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Abstract
An experimental investigation of heat transfer and fluid flow on a heated rotating disc in a stagnation flow has been carried out. From the measured results of heat transfer coefficients, the conditions of transition from the region in which the stagnation flow is dominant to the region in which the forced convection by the disc rotation is dominant, and the transition from the forced convection dominant to the natural convection dominant region are determined. Empirical equations of Nusselt numbers for the three regions are also given. Flow visualizations by shadowgraphy and laser induced fluorescence techniques show that circumferential vortices due to buoyancy force appear on a rotating disc in the natural convection dominant region. The circumferential vortices are generated in the central region of the disc and move outwards in a radial direction. The radial velocity of the circumferential vortices is calculated from the time correlation of the temperature fluctuation. The calculated results indicate that the circumferential vortices have constant velocity at the outer region of the disc.
Journal
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- KAGAKU KOGAKU RONBUNSHU
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KAGAKU KOGAKU RONBUNSHU 23 (5), 679-686, 1997
The Society of Chemical Engineers, Japan
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Details 詳細情報について
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- CRID
- 1390282679484491264
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- NII Article ID
- 10002768010
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- NII Book ID
- AN00037234
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- ISSN
- 13499203
- 0386216X
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- NDL BIB ID
- 4293933
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed