Boundary-layer transition and the behaviour of spiral vortices on rotating spheres

Y. Kohama; R. Kobayashi

Boundary-layer transition and the behaviour of spiral vortices on rotating spheres

Y. Kohama, R. Kobayashi

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

Abstract

The mechanism of boundary-layer transition and the behaviour of spiral vortices on spheres rotating in otherwise undistributed fluid were investigated experimentally. Critical and transition Reynolds numbers which determine the laminar-turbulent transition regime on the sphere surface were measured. In addition the number of spiral vortices on the sphere and the direction of the vortex axis were clarified.

Original language	English
Journal	Reports of the Laboratory for Air-Flow Measurements, the Institute of High Speed Mechanics, Tohoku University
Volume	4
Publication status	Published - 1988

ASJC Scopus subject areas

Engineering(all)

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title = "Boundary-layer transition and the behaviour of spiral vortices on rotating spheres",

abstract = "The mechanism of boundary-layer transition and the behaviour of spiral vortices on spheres rotating in otherwise undistributed fluid were investigated experimentally. Critical and transition Reynolds numbers which determine the laminar-turbulent transition regime on the sphere surface were measured. In addition the number of spiral vortices on the sphere and the direction of the vortex axis were clarified.",

author = "Y. Kohama and R. Kobayashi",

year = "1988",

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journal = "Reports of the Laboratory for Air-Flow Measurements, the Institute of High Speed Mechanics, Tohoku University",

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AU - Kobayashi, R.

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AB - The mechanism of boundary-layer transition and the behaviour of spiral vortices on spheres rotating in otherwise undistributed fluid were investigated experimentally. Critical and transition Reynolds numbers which determine the laminar-turbulent transition regime on the sphere surface were measured. In addition the number of spiral vortices on the sphere and the direction of the vortex axis were clarified.

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VL - 4

JO - Reports of the Laboratory for Air-Flow Measurements, the Institute of High Speed Mechanics, Tohoku University

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