Investigation of two-dimensional and axisymmetric internal separated flows
Abstract
The Osswald and Ghia (1981) direct, implicit time-dependent method for the two-dimensional unsteady incompressible Navier-Stokes equations in generalized orthogonal coordinates is expanded to include the case of axisymmetic flow geometries, with the Navier-Stokes equations being written in terms of a general, orthogonal, axisymmetric coordinate transformation which facilitates the numerical treatment of complex internal flow geometries. A clustered orthogonal coordinate transformation procedure is used to resolve the multiple length scales encountered within complex separate internal viscous flows. Preliminary results are given for a plane two-dimensional symmetric sudden expansion.
- Publication:
-
AIAA, Aerospace Sciences Meeting
- Pub Date:
- January 1984
- Bibcode:
- 1984aiaa.meet....1O
- Keywords:
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- Axisymmetric Flow;
- Computational Fluid Dynamics;
- Computational Grids;
- Separated Flow;
- Two Dimensional Flow;
- Coordinate Transformations;
- Incompressible Flow;
- Navier-Stokes Equation;
- Stream Functions (Fluids);
- Unsteady Flow;
- Viscous Flow;
- Vorticity Equations;
- Fluid Mechanics and Heat Transfer