Study behavior of airflow in 2.5 - in hard disk drive (Thai)

Abstract

In this paper, the behavior of turbulence airflow field caused by spinning motion of a single disk inside 2.5-in hard disk drive (HDD) was investigated. A k-epsilon (RNG) turbulence model of the system was created and simulated using the commercial software (FLUENT). Two different positions of actuator arm (ID and OD) were studied. At the difference each actuator arm position, pressure and velocity were acquired and studied. At ID-position the pressure acting on the actuator arm was higher than at OD-position, while the velocity of airflow was the highest at the position closest to the disk.