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

Dae Wee Kong; Won Gu Joo

doi:10.1109/APMRC.2004.1521970

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

Dae Wee Kong, Won Gu Joo

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 Re_H = 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 language	English
Title of host publication	Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	99-100
Number of pages	2
ISBN (Electronic)	0780387171, 9780780387171
DOIs	https://doi.org/10.1109/APMRC.2004.1521970
Publication status	Published - 2004
Event	2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004 - Seoul, Korea, Republic of Duration: 2004 Aug 16 → 2004 Aug 19

Publication series

Name	Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004

Other

Other	2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004
Country/Territory	Korea, Republic of
City	Seoul
Period	04/8/16 → 04/8/19

Bibliographical note

Publisher Copyright:
© 2004 IEEE.

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Access to Document

10.1109/APMRC.2004.1521970

Cite this

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). Article 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

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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 = {\`U}RH/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.",

author = "Kong, {Dae Wee} and Joo, {Won Gu}",

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year = "2004",

doi = "10.1109/APMRC.2004.1521970",

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Kong, DW & Joo, WG 2004, Visualization of dominant vortices between co-rotating disks in shroud without obstruction. in Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004., 1521970, Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004, Institute of Electrical and Electronics Engineers Inc., pp. 99-100, 2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004, Seoul, Korea, Republic of, 04/8/16. https://doi.org/10.1109/APMRC.2004.1521970

Visualization of dominant vortices between co-rotating disks in shroud without obstruction. / Kong, Dae Wee; Joo, Won Gu.
Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004. Institute of Electrical and Electronics Engineers Inc., 2004. p. 99-100 1521970 (Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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

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