Particular Solutions for Slow Viscous Flows Close to Solid Body Rotation. Analytic Discussion and Examples.

Abstract

Particular solutions for slow viscous flows close to solid body rotation are found by product hypotheses which lead to two different eigenvalue problems. The adjoint equations and orthogonality conditions are derived. For high values of the Ekman number some of the particular solutions can be interpreted as the contribution of the Ekman layer. A simplified differential equation is derived for the interior of the flow field; it is valid if the Ekman number is large. The effect of the Ekman layer is taken into account by modified boundary conditions. For a problem studied by Stewartson, the solution is expressed in terms of both kinds of particular solutions. Also discussed are flow patterns in which the formation of striation is inhibited. Further examples show flow fields with perturbation introduced along cylindrical boundaries. Examples using the complete solutions are given; certain discontinuities of the schematic flow fields are smoothed out. Also discussed is the relation between these solutions and a solution with different boundary conditions due to Morrison and Morgan. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1971
Accession Number
AD0725072

Entities

People

  • Karl G. Guderley
  • Norman L. Soong

Organizations

  • Ohio State University

Tags

DTIC Thesaurus Topics

  • Bodies
  • Boundaries
  • Differential Equations
  • Eigenvalues
  • Equations
  • Flow
  • Flow Fields
  • Rotation
  • Solid Bodies
  • Viscous Flow

Fields of Study

  • Mathematics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Dynamics.