0
TECHNICAL BRIEFS

An Approximate Analytical Model for the Separation of a Sphere From a Flat in the Presence of a Liquid

[+] Author and Article Information
J. L. Streator

G. W. Woodruff School of Mechanical Engineering,  Georgia Institute of Technology, Atlanta, GA 30332-0405jeffrey.streator@me.gatech.edu

By “sphere” we mean a body whose contacting surface has a uniform radius of curvature.

J. Tribol 128(2), 431-435 (Nov 03, 2005) (5 pages) doi:10.1115/1.2162556 History: Received January 07, 2005; Revised November 03, 2005

An approximate analytical model is proposed to describe the process of separating a sphere from a flat in the presence of a Newtonian liquid, under conditions of constant force. The model is based on consideration of the effects of sphere inertia in characterizing the critical point of separation—namely, that there is a sudden onset of significant sphere acceleration. Good agreement is found between the predictions of the analytical model with those of a full numerical simulation.

FIGURES IN THIS ARTICLE
<>
Copyright © 2006 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Schematic of interface under investigation

Grahic Jump Location
Figure 2

Convergence behavior of integral to compute viscous force

Grahic Jump Location
Figure 3

Typical results for the viscous force history

Grahic Jump Location
Figure 4

Time to separation versus applied force

Grahic Jump Location
Figure 5

Time to separation versus sphere mass

Grahic Jump Location
Figure 6

Time to separation versus sphere radius

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In