Adaptive grid generation technique of sub-5 nm flying height air bearing slider with clearance discontinuities

作者：Yang Ting Yi; Shi Bao Jun^*; Ge Pei Qi; Bai Xue

来源：Microsystem Technologies, 2012, 18(12): 2017-2026.

DOI：10.1007/s00542-012-1536-7

An adaptive grid generation technique including three kinds of weight functions related to the maximum pressure gradient is proposed to simulate the pressure distribution of a sub-5 nm flying height air bearing slider with clearance discontinuities in the interface of the head and the disk in hard disk drives. Considering the clearance discontinuities of a slider with complex geometrical shape, we have defined a discontinuous factor to describe the mass flux crossing the discontinuous boundaries. The effect of different parameters in the weight functions on the node distribution of a typical slider is investigated. The pressure profile of a slider with sub-5 nm flying height is obtained based on the grid distribution calculated from the weight functions. The computational efficiency for simulating the pressure distributions is compared for different kinds of weight functions.

• 出版日期2012-12
• 单位山东大学; 山东建筑大学