On Flow Reversal in Turbulent Swirling Flow
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概要
- 論文の詳細を見る
A turbulent swirling flow is studied with the aid of a variational method. The mean-flow field is expressed by the mean vorticity proportional to its curl. The total axial flux and total helicity per unit length are introduced to characterize the swirling flow, and the condition for the reversal of the axial flow near the center of flow is obtained. On this basis, the helicity injection is discussed in the light of the control of the onset of flow reversal in a turbulent swirling flow. Reference is also made to a cylindrical jet in relation to a swirling laboratory jet and an accretion-disk jet.
- 2003-11-15
著者
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YOSHIZAWA Akira
Institute of Industrial Science, The University of Tokyo
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Itoh Sanae-i.
Research Instittue For Applied Mechanics Kyushu University
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Itoh Kimitaka
National Inst. For Fusion Sci. Gifu
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Yokoi N
Institute Of Industrial Science University Of Tokyo
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Yokoi Nobumitsu
Institute Of Industrial Science The University Of Tokyo
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Yoshizawa A
Kanagawa Univ. Kanagawa
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Yoshizawa Akira
Institute For Industrial Science University Of Tokyo
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