An Interactive Approach to Subsonic Flows with Separation,

Abstract

A viscous-inviscid interaction procedure is presented for computing incompressible separation bubbles in two-dimensional flow over lifting airfoils. The scheme consists of an inviscid-flow method, based on the technique of conformal mapping, together with an inverse boundary-layer method which makes use of the Cebeci-Smith algebraic eddy-viscosity formulation together with the Mechul-function approach. The coupling between the viscous and the inviscid calculations is achieved through the use of a set of interaction coefficients computed using the conformal mapping method. These coefficients define the relationship between the boundary-layer thickness, represented by means of blowing distribution on the airfoil surface, and the external inviscid velocity distribution.

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADP001943

Entities

People

  • R. W. Clark
  • Tuncer Cebeci

Organizations

  • McDonnell Douglas

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Cartography
  • Coefficients
  • Conformal Mapping
  • Flow
  • Inviscid Flow
  • Layers
  • Subsonic Flow
  • Two Dimensional
  • Two Dimensional Flow

Fields of Study

  • Physics

Readers

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