Study on boundary layer transition of a rotating disk

Y. Kohama

doi:10.1007/BF01170959

Study on boundary layer transition of a rotating disk

Y. Kohama

Research output: Contribution to journal › Article › peer-review

103 Citations (Scopus)

Abstract

Behaviour of spiral vortices being generated in transition regime of a disk rotating in otherwise undisturbed fluid is experimentally studied in detail. Through visualizations of the transition regime by using close-up camera, new striped flow patterns originating along the axis of spital vortices are found to be ring-like vortices which occur on the surfaces of each spiral vortices. Mechanism of the spiral vortex is clarified by cutting the vortices by strobo slit light. It is also found out experimentally that the phase velocity of the vortices is zero.

Original language	English
Pages (from-to)	193-199
Number of pages	7
Journal	Acta Mechanica
Volume	50
Issue number	3-4
DOIs	https://doi.org/10.1007/BF01170959
Publication status	Published - 1984 Sep 1

ASJC Scopus subject areas

Computational Mechanics
Mechanical Engineering

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10.1007/BF01170959

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abstract = "Behaviour of spiral vortices being generated in transition regime of a disk rotating in otherwise undisturbed fluid is experimentally studied in detail. Through visualizations of the transition regime by using close-up camera, new striped flow patterns originating along the axis of spital vortices are found to be ring-like vortices which occur on the surfaces of each spiral vortices. Mechanism of the spiral vortex is clarified by cutting the vortices by strobo slit light. It is also found out experimentally that the phase velocity of the vortices is zero.",

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AB - Behaviour of spiral vortices being generated in transition regime of a disk rotating in otherwise undisturbed fluid is experimentally studied in detail. Through visualizations of the transition regime by using close-up camera, new striped flow patterns originating along the axis of spital vortices are found to be ring-like vortices which occur on the surfaces of each spiral vortices. Mechanism of the spiral vortex is clarified by cutting the vortices by strobo slit light. It is also found out experimentally that the phase velocity of the vortices is zero.

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Study on boundary layer transition of a rotating disk

Abstract

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