Influence of Surface Tension and Surface Shear on Final Coat Thickness in Jet-Stripped Continuous Coating of Sheet Materials.

Abstract

There are many situations in which a liquid film needs to be wiped off a solid surface, and one of the most common technological stripping mechanisms used for that purpose is a high-speed fluid jet. The industrial importance of this method of film wiping has prompted scientific studies of the process, but so far, these have accounted only for the pressure exerted by the jet on the film. This document gives consideration also to surface tension and tangential stresses, and analyzes under what circumstances they have an important influence on what can be achieved stripping a film with a jet. The equations governing the process in those circumstances are established and analyzed. Numerical results, moreover, are obtained which quantify the extent to which surface tension reduces the wiping effect of the jet. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1983
Accession Number
ADA136402

Entities

People

  • E. O. Tuck
  • J. M. Vanden-broeck

Organizations

  • University of Wisconsin–Madison

Tags

Communities of Interest

  • Cyber

DTIC Thesaurus Topics

  • Boundaries
  • Differential Equations
  • Equations
  • Flow
  • Formulas (Mathematics)
  • Geometry
  • Hydrostatic Pressure
  • Materials
  • Navier Stokes Equations
  • Partial Differential Equations
  • Pressure Distribution
  • Pressure Gradients
  • Steady Flow
  • Surface Tension
  • Thickness
  • United States
  • Universities

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  • Economics
  • Structural Dynamics.