DocumentCode
2661572
Title
Secondary Flow Oscillation in Outer Region of Unobstructed Co-rotating Disks in Shroud
Author
Kong, Dae-Wee ; Joo, Won-Gu
Author_Institution
Dept. of Mech. Eng., Yonsei Univ., Seoul
fYear
2006
fDate
Nov. 29 2006-Dec. 1 2006
Firstpage
1
Lastpage
2
Abstract
In this study, we have tried LES model for inner-disk flowfield to investigate the flow disturbance and the flow structure driven by the co-rotating disks without any obstruction. The boundary pattern between inner region and outer region obtained lobe-shape structure clearly and its number has been validated on experimental data by our previous study. Two kinds of disturbances in the outer region were observed, one is global wave propagation and another is local wave propagation on Ekman boundary layer. Those disturbances make together the oscillation of secondary flow near the shroud
Keywords
boundary layers; disc drives; fluid oscillations; hard discs; wave propagation; Ekman boundary layer; HDD; LES model; inner-disk flowfield; secondary flow oscillation; shroud; unobstructed co-rotating disks; wave propagation; Brain modeling; Fluctuations; Geometry; Grid computing; Hard disks; Mechanical engineering; Mesh generation; Numerical analysis; Region 1; Shape; Co-rotating disks; Flow fluctuation; HDD; LES;
fLanguage
English
Publisher
ieee
Conference_Titel
Asia-Pacific Magnetic Recording Conference, 2006
Conference_Location
Singapore
Print_ISBN
1-4244-0863-6
Type
conf
DOI
10.1109/APMRC.2006.365929
Filename
4215314
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