On the Flow Between Two Long Eccentric Cylinders.

Abstract

The fluid inertia effects in the lubricating air film of high-speed tape transport systems have yet to be understood. To cope theoretically with the attendant problems, a computational procedure was developed to solve the Navier-Stokes equations of fluid motion for an incompressible fluid in a doubly-connected region. As a test case, the new procedure was applied to the flow in the annular region between two long eccentric cylinders, one of which is rotating. Excellent agreement is obtained with exact analytical results for the problem when inertia can be neglected. The numerical results are then extended to cover a wide range of operating parameters, with considerable assurance that the predictions so-obtained are accurate. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1970
Accession Number
AD0717366

Entities

People

  • Des R. Sood
  • H. G. Elrod

Organizations

  • Columbia University

Tags

DTIC Thesaurus Topics

  • Agreements
  • Computers
  • Differential Equations
  • Equations
  • Equations Of Motion
  • Lepidoptera
  • Mathematics
  • Navier Stokes Equations
  • Partial Differential Equations
  • Transport Ships

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).