NDLI: Characteristics of transient vortices in the boundary layer on a rotating disk under orbital motion

Content Provider	Springer Nature Link
Author	Munekata, Mizue Jobi, Naoya Kubo, Keiichiro Yoshikawa, Hiroyuki
Copyright Year	2013
Abstract	The objective of this study is to experimentally examine the characteristics of transient vortices in the boundary layer on a disk undergoing both rotation and orbital motion. The velocity fluctuations on a rotating, orbiting disk (disk radius equal to orbital radius) are measured by the hot-wire method, and the effects of orbital motion on the transient vortices in the boundary layer are examined. When the ratio of the orbital speed to the speed of rotation is ±0.025, the interval of transient vortices depends on only the orbital radius, regardless of the directions of rotation and orbital motion. The rate of low-frequency disturbances increases as the orbital speed increases, and the vortices induced by these low-frequency disturbances travel over the disk and then develop in the region of increased velocity. Consequently, no vortices generated on a rotating disk under orbital motion are stationary relative to the disk.
Starting Page	600
Ending Page	605
Page Count	6
File Format	PDF
ISSN	10032169
Journal	Journal of Thermal Science
Volume Number	22
Issue Number	6
e-ISSN	1993033X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-11-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Boundary layer transition Transient vortex Rotating disk Velocity measurement Hot-wire anemometer Classical Continuum Physics Engineering Fluid Dynamics Engineering Thermodynamics, Heat and Mass Transfer
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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