Acknowledgement
Grant : 고속 경량 Hard Disk Drive의 설계에 관한 연구
Supported by : 한국학술진흥재단
Flow field in a hard disk drive has been predicted numerically. Theoretical model was constructed based on a commercially available hard disk drive with 40 Mega byte capacity. Since the gap between disk tip and shroud is not homogeneous in real hard disk drive, three kinds of gap size have been tested as computational model. The discussion has been made on the circumferential velocity, radial velocity, and pressure fields. As a result, the average shear stress on the disk surface was reduced as the gap size decreased. This means that the shroud should be designed compactly to reduce power consumption of the spindle motor.
Grant : 고속 경량 Hard Disk Drive의 설계에 관한 연구
Supported by : 한국학술진흥재단