Local heat transfer and flow characteristics inside Co-rotating disks in HDD

Hyung Hee Cho, Chung Ho Won, Goo Young Ryu, Dong Ho Rhee, Sung Kook Hong

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

Abstract

The present study investigates heat transfer and flow characteristics inside co-rotating disks simulated on the 3.5″ Hard Disk Drives (HDD). The experiments are conducted for the various operating conditions, such as hub height, rotating Reynolds number and head-arm length. A naphthalene sublimation technique is used to determine the detailed local heat transfer coefficients on the rotating disks. Numerical calculations are performed simultaneously to investigate the flow patterns induced by disk rotation. The results show that the heat transfer on the rotating disk is enhanced according to the increase of the rotating Reynolds number. The head arm inserted in the cavity between the rotating disk and the cover enhances uniformity of the heat/mass transfer on the disk due to the deficit of the momentum.

Original languageEnglish
Title of host publicationAsia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages105-106
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

Other

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

Fingerprint

Hard disk storage
Rotating disks
Heat transfer
Reynolds number
Sublimation
Naphthalene
Flow patterns
Heat transfer coefficients
Momentum
Mass transfer
Experiments

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Cho, H. H., Won, C. H., Ryu, G. Y., Rhee, D. H., & Hong, S. K. (2004). Local heat transfer and flow characteristics inside Co-rotating disks in HDD. In Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004 (pp. 105-106). [1521973] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APMRC.2004.1521973
Cho, Hyung Hee ; Won, Chung Ho ; Ryu, Goo Young ; Rhee, Dong Ho ; Hong, Sung Kook. / Local heat transfer and flow characteristics inside Co-rotating disks in HDD. Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004. Institute of Electrical and Electronics Engineers Inc., 2004. pp. 105-106
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Cho, HH, Won, CH, Ryu, GY, Rhee, DH & Hong, SK 2004, Local heat transfer and flow characteristics inside Co-rotating disks in HDD. in Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004., 1521973, Institute of Electrical and Electronics Engineers Inc., pp. 105-106, 2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004, Seoul, Korea, Republic of, 04/8/16. https://doi.org/10.1109/APMRC.2004.1521973

Local heat transfer and flow characteristics inside Co-rotating disks in HDD. / Cho, Hyung Hee; Won, Chung Ho; Ryu, Goo Young; Rhee, Dong Ho; Hong, Sung Kook.

Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004. Institute of Electrical and Electronics Engineers Inc., 2004. p. 105-106 1521973.

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

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AB - The present study investigates heat transfer and flow characteristics inside co-rotating disks simulated on the 3.5″ Hard Disk Drives (HDD). The experiments are conducted for the various operating conditions, such as hub height, rotating Reynolds number and head-arm length. A naphthalene sublimation technique is used to determine the detailed local heat transfer coefficients on the rotating disks. Numerical calculations are performed simultaneously to investigate the flow patterns induced by disk rotation. The results show that the heat transfer on the rotating disk is enhanced according to the increase of the rotating Reynolds number. The head arm inserted in the cavity between the rotating disk and the cover enhances uniformity of the heat/mass transfer on the disk due to the deficit of the momentum.

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Cho HH, Won CH, Ryu GY, Rhee DH, Hong SK. Local heat transfer and flow characteristics inside Co-rotating disks in HDD. In Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004. Institute of Electrical and Electronics Engineers Inc. 2004. p. 105-106. 1521973 https://doi.org/10.1109/APMRC.2004.1521973