This paper presents a method for reducing particle contamination on sliders. A model for simulating particle movement in an air bearing is developed and solved numerically. Through the simulation, the paths of particles moving in the air bearing are studied for various designs of sliders. It is found that some slider designs have good characteristics that make most of the particles entering the air bearing leave the slider from the sides instead of from the trailing edge, which is regarded as beneficial to reduce the particle contamination on the sliders.

1.
Burgdorfer
A.
,
1959
, “
The Influence of the Molecular Mean Free Path on the Performance of Hydrodynamic Gas Lubricated Bearings
,”
ASME Journal of Basic Engineering
, Vol.
81
, pp.
94
100
.
2.
Cha
E. T.
, and
Bogy
D. B.
,
1995
, “
A Numerical Scheme for Static and Dynamic Simulation of Subambient Pressure Shaped Rail Sliders
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
117
, pp.
36
46
.
3.
Clift, R., Grace, J. R., and Weber, M. E., 1978, Bubbles, Drops, and Particles, Academic Press.
4.
Fukui
S.
, and
Kaneko
R.
,
1988
, “
Analysis of Ultra-thin Gas Film Lubrication Based on Linearized Boltzmann Equation: First report-Derivation of A Generalized Lubrication Equation Including Thermal Creep Flow
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
110
, pp.
253
261
.
5.
Gans
R.
,
1985
, “
Lubrication Theory at Arbitrary Knudsen Number
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
107
, pp.
431
433
.
6.
Hiller
B.
, and
Singh
G. P.
,
1991
, “
Interaction of Contaminant Particles with the Particulate Slider/Disk Interface
,”
Adv. Info. Storage Syst.
, Vol.
2
, pp.
173
180
.
7.
Koka
R.
,
Kumaran
A. R.
,
1991
, “
Visualization and Analysis of Particulate Buildup on the Leading Edge Tapers of Sliders
,”
Adv. Info. Storage Syst.
, Vol.
2
, pp.
161
171
.
8.
Liu
V. C.
,
Pang
S. C.
, and
Jew
H.
,
1965
, “
Sphere Drag in Flows of Almost-Free Molecules
,”
The Physics of Fluids
, Vol.
8
, No.
5
, pp.
788
796
.
9.
Lu, S., and Bogy, D. B., 1994, “A Multi-Grid Control Volume Method for the Simulation of Arbitrarily Shaped Slider Air Bearings with Multiple Recess Levels,” CML Report, No. 94-016, UC Berkeley.
10.
Lu, S., and Bogy, D. B., 1995, “CML Air Bearing Design Program User’s Manual,” CML Report, No. 95-003, UC Berkeley.
11.
Maxey, M. R., 1993, “The Equation of Motion for A Small Rigid Sphere in A Nonuniform or Unsteady Flow,” Gas-Solid Flows, Fed-Vol. 166, pp. 57–62.
12.
Rubinow
S. I.
,
Keller
J. B.
,
1961
, “
The Transverse Force on A Spinning Sphere Moving in A Viscous Fluid
,”
J. Fluid Mech.
, Vol.
11
, Part 3, pp.
447
459
.
13.
Ruiz
O. J.
, and
Bogy
D. B.
,
1990
a, “
A Numerical Simulation of the Head-Disk Assembly in Magnetic Hard Disk: 1. Component Model
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
112
, pp.
593
602
.
14.
Saffman
P. G.
,
1965
, “
The Lift on A Small Sphere in A Slow Shear Flow
,”
J. Fluid Mech.
, Vol.
22
, Part 2, pp.
385
400
.
15.
Schaaf, S. A., and Chambre, P. L., 1961, Flow of Rarefied Gases, Princeton University Press.
16.
Shyy
W.
, and
Sun
C. S.
,
1993
, “
Development of A Pressure-correction/Staggered-grid Based Multi-grid Solver for Incompressible Recirculating Flows
,”
Computer and Fluids
, Vol.
22
, No.
1
, pp.
51
76
.
This content is only available via PDF.
You do not currently have access to this content.