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LES Study of Flow Between Shrouded Co-rotating Disks

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Abstract

Large eddy simulations of turbulent flow between shrouded co-rotating disks, representing a simplified model of a hard disk drive, are performed. The computation domain surrounds a complete disk and is bounded at top and bottom by half a disk. Therefore, it is possible to compute the fluctuating pressure field surrounding the middle disk. Also, the influence of the shroud geometry is taken into account by comparing a flat shroud wall and a wall with rib chambers. In the flat shroud case, the fluctuating pressure on the upper- and lower-surface of a disk indicates a strong correlation with fluid motion travelling across the disk-tip clearance region. However, in the ribbed shroud case the organized flow structure that is observed in the flat shroud case disappears and the fluctuating pressure acting on the surface of the disk is remarkably diminished.

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References

  1. Abrahamson, S.D., Eaton, J.K., Koga, D.J.: The flow between shrouded corotating disks. Phys. Fluids A 1, 241–251 (1989)

    Article  Google Scholar 

  2. Fukaya, R., Obi, S., Masuda, S., Tokuyama, M.: Flow instability and elastic vibration of shrouded corotating disk systems. Exp. Fluids 33, 369–373 (2002)

    Article  Google Scholar 

  3. Germano, M., Piomelli, U., Moin, P., Cabot W.H.: A dynamic subgridscale eddy viscosity model. Phys. Fluids A 3, 1760 (1991)

    Article  MATH  Google Scholar 

  4. Kurashima, D., Naka, Y., Fukagata, K., Obi, S.: Simultaneous measurements of disk vibration and pressure fluctuation in turbulent flow developing in a model hard disk drive. Int. J. Heat Fluid Flow 32(3), 567–574 (2011)

    Article  Google Scholar 

  5. Lilly, D.K.: A proposed modification of the Germano subgrid-scale closure method. Phys. Fluids A 4, 633 (1992)

    Article  Google Scholar 

  6. Shirai, K., Yaguchi, Y., Buttner, L., Czarske, J., Obi S.: Highly spatially resolving laser Doppler velocity measurements of the tip clearance flow inside a hard disk drive model. Exp. Fluids 50, 573–586 (2011)

    Article  Google Scholar 

  7. Suzuki, J., Yamamoto, W., Obi, S., Masuda, S.: Exciting and damping effects on flow induced vibration in corotating disk system. In: ASME Information Storage and Processing Systems Conference, Santa Clara, 28–29 June 2005

  8. Takewaki, M., Tsuda, N., Maruyama, T.: An analysis of disk flutter in hard disk drives in aerodynamic simulations. IEEE Trans. Magn. 37(2), 842–846 (2001)

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Yokohama, 223-8522, Japan

    Tomoya Washizu, Florian Lubisch & Shinnosuke Obi

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  1. Tomoya Washizu
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  2. Florian Lubisch
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  3. Shinnosuke Obi
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Correspondence to Shinnosuke Obi.

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Washizu, T., Lubisch, F. & Obi, S. LES Study of Flow Between Shrouded Co-rotating Disks. Flow Turbulence Combust 91, 607–621 (2013). https://doi.org/10.1007/s10494-013-9494-4

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  • DOI: https://doi.org/10.1007/s10494-013-9494-4

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