RUI: Nanoscale Hydrodynamic Flows in Disk Drive Mechanisms

摘要：A.Garcia San Jose州立大学CTS-9419121本提案涉及计算机磁盘驱动器中读写头和磁盘之间流的研究。在计算机磁盘驱动器中，读/写磁头不接触盘片，而是在盘片上方空气动力学地飞行一小段距离。头部非常小（大约1/16英寸长），但它与盘片的距离非常小（大约是光波长的1/10）。由于这些维度，本研究将采用直接模拟蒙特卡罗方法，该方法允许在高克努森数下进行计算。研究将包括表面粗糙度和实际读/写磁头尺寸的影响。

Abstract A.Garcia San Jose State University CTS-9419121 This proposal involves the study of the flow between the read/write head and the disk in computer disk drives. In a computer disk drive the read/write head does not touch the platter but rather aerodynamically flies a very small distance above it. The head is very small (about 1/16th of an inch long) yet its distance from the platter is microscopic (about 1/10th the wavelength of light). Because of these dimensions, this study will employ the direct simulation Monte Carlo method which permits computations at high Knudsen numbers. The studies will include the effects of surface roughness and the dimensions of the actual read/write head.