抄録
Low flying height of slider and high-speed rotation of disk become indispensable caused by the high recording density and high data transfer rate of HDD. As for such the low flying height and high-speed rotation, the influence of the air viscous force which occurs between slider and disk can not be ignored. In this paper, to research the influence of the air viscous force on the flying height, we have compared the simulation results of flying height and pitch angle, which were calculated considering air viscous force and no considering air viscous force. It was found there was a tendency for the pitch angle of slider to decrease and to raise the trailing edge of slider under the influence of air viscosity moment, and the increase in the amount of flying height of the slider by air viscosity force is about 5% in the case of lOnm or less flying height of slider.
