Visualization of dominant vortices between co-rotating disks in shroud without obstruction

Dae Wee Kong, Won Gu Joo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Laser sheet and digital camera was used for 2- dimensional visualization of the unsteady flow between corotating disks in air with a cylindrical enclosure. Geometric parameters are gap height between disks, and gap distance between disk tip and shroud. The lobe-structured boundary between inner region and outer region was detected by inserted particles, and the number of dominant vortices was determined clearly. It is found from flow visualization that the number of vortex cells can be correlated with Reynolds number based on height(H) between disks which is defined as ReH = ÙRH/v ranging from 7.96×102 to 1.43×104, and decreases as the disk speed increases. The lobe pattern by vortex cells is changed to a circular pattern for the wide gap than narrow one.

Original languageEnglish
Title of host publicationAsia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages99-100
Number of pages2
ISBN (Electronic)0780387171, 9780780387171
DOIs
Publication statusPublished - 2004 Jan 1
Event2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004 - Seoul, Korea, Republic of
Duration: 2004 Aug 162004 Aug 19

Publication series

NameAsia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004

Other

Other2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004
CountryKorea, Republic of
CitySeoul
Period04/8/1604/8/19

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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    Kong, D. W., & Joo, W. G. (2004). Visualization of dominant vortices between co-rotating disks in shroud without obstruction. In Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004 (pp. 99-100). [1521970] (Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APMRC.2004.1521970