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

doi:10.1109/APMRC.2004.1521973

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

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 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	105-106
Number of pages	2
ISBN (Electronic)	0780387171, 9780780387171
DOIs	https://doi.org/10.1109/APMRC.2004.1521973
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.2004.1521973

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] (Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004). 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 (Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004).

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title = "Local heat transfer and flow characteristics inside Co-rotating disks in HDD",

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.",

author = "Cho, {Hyung Hee} and Won, {Chung Ho} and Ryu, {Goo Young} and Rhee, {Dong Ho} and Hong, {Sung Kook}",

note = "Publisher Copyright: {\textcopyright} 2004 IEEE.; 2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004 ; Conference date: 16-08-2004 Through 19-08-2004",

year = "2004",

doi = "10.1109/APMRC.2004.1521973",

language = "English",

series = "Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004",

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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, Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004, 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 (Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004).

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

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AU - Cho, Hyung Hee

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N2 - 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.

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. (Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004). https://doi.org/10.1109/APMRC.2004.1521973

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

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