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Mitigation of flow induced vibration of head gimbal assembly
The airflow of a 10,000 rpm hard disk drive is simulated using the LES turbulent model. The critical parameters for using LES model to get the correct/reliable result are discussed. The flow inducedExpand
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Spindle-like porous N-doped TiO2 encapsulated (Ca,Y)F2:Yb3+,Tm3+ as the efficient photocatalyst near infrared range.
In this study, a novel photocatalyst composed of N-doped TiO2 (N-TiO2) and (Ca,Y)F2:Yb3+,Tm3+ was prepared by simple dealloying followed by hydrothermal method. The composite exhibits homogeneousExpand
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A slip model for gas lubrication based on an effective viscosity concept
Abstract Gas lubrication theory is used widely in microelectromechanical systems such as microbearings, micropumps and microvalves. Because of microsize or even nanosize geometries, rarefaction andExpand
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Numerical Investigation of Flow Structure Interaction Coupling Effects in Hard Disk Drives
This paper studies the flow structural interaction (FSI) within a hard disk drive (HDD) through the use of a novel coupling method. The interaction studied was the fluid induced vibration in the HDD.Expand
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Development of Boundary Slip Model in Transition Regime Using DSMC Method
ABSTRACT The direct simulation Monte Carlo (DSMC) method is used to study the slip boundary condition of the micro-channel flow in recording storage system. The study shows that in transition regime,Expand
A Multi-Coefficient Slip Model For Ultra-Thin Gas Film Lubrication
The current work investigated and analyzed the performance of conventional slip models among various regimes of Knudsen number, and developed a new slip velocity model, multi coefficient model, suitable especially to transition regime by using Taguchi quality control techniques and numerical analysis. Expand
Reduction of Flow Induced Vibration in Hard Disk Drive
In this paper, system level analysis is carried out for a functional HDD with two disks and four sliders operating at spindle speed of 15000 rpm. Full numerical models both for computational fluidExpand
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Structure Optimization Study of Hard Disk Drives to Reduce Flow-Induced Vibration
In this paper, the effects of two flow-induced vibration (FIV) mitigation components on hard disk drive (HDD) airflow, vortex splitters and flow diverters, were verified. The edges of the componentsExpand
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