Decreasing turbulent helium flow in hard disk drive

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Tawinprai, Supitcha^1 ; Suriyawanakul, Jarupol^1 ; Tangchaichit, Kiatfa^1,2

Department of Mechanical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen

40002, Thailand^1

Research Unit on Mechanical Component Design, Khon Kaen University, Khon Kaen

40002, Thailand^2

关键词: FLUENT software;    Hard Disk Drive;    Head gimbals assemblies;    Helium flow;    Helium gas;    Lower pressures;    Positioning error;    Pressure fluctuation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012200/pdf
DOI  :  10.1088/1755-1315/113/1/012200

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A spoiler installed in a hard disk drive is helpful for reducing the flow which strikes the Head Gimbals Assembly (HGA) causing positioning errors and vibration. Filling a hard disk drive, with an installed spoiler, with helium gas was simulated by ANSYS Fluent software by using a realizable k -model to carry out the turbulence calculation of helium flow. The results show that the pressure fluctuation in a hard disk drive with a spoiler installed is lower than in a hard disk drive without, and accordingly the lower pressure fluctuation can reduce the force caused by pressure on the platter disks and reduce vibration in the hard disk drive.