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밀폐된 단일 회전 원판 주위의 유동손실에 관한 연구

A Study on the Flow Friction Loss of a Shrouded Rotating Disk

  • 조성욱 (삼성전자(주) DA 연구소) ;
  • 임윤철 (연세대학교 기계전자공학부)
  • 발행 : 2003.10.01

초록

The fundamental fluid mechanics associated with the rotation of a smooth plane disk enclosed within a cylindrical chamber have been studied experimentally. In order to acquire systematic information pertinent to this problem torque and friction loss data were obtained over a wide range of disk Reynolds numbers for axial clearance-disk radius ratio H/R from 0.025 to 0.2 and radial tip gap-disk radius ratio s/R from 0.021 to 0.105. Loss analysis of hard disk drive (HDD) is presented to describe the contribution of windage loss of a rotating disk. The minimum loss form factor of HDD can be obtained from this analysis at each operation conditions.

키워드

참고문헌

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  8. 회전원판 주변에서의 열전달 및 유동현상에 대한 실험적 연구 류구영