Computation of internal incompressible separated flows using a spacemarching technique
Abstract
A spacemarching method which describes mildly elliptic flows and includes a Poisson equation for the pressure distribution is presented for modeling incompressible separated flows. Momentum and continuity equations are treated as a coupled system to obtain a divergencefree velocity field. Once the Poisson equation is solved, it remains unchanged through subsequent iterations. Comparisons of the model predictions with data gathered from an unseparated turbulent flow in a cascade and a laminar separated flow in a suddenly expanding channel yield a favorable match. Although the model also successfully describes the flow past a cascade of cambered, double circular arc airfoils, applications are limited to conditions of only mild viscid/inviscid interaction.
 Publication:

AIAA, 18th Fluid Dynamics and Plasmadynamics and Lasers Conference
 Pub Date:
 July 1985
 Bibcode:
 1985fdpd.confU....K
 Keywords:

 Cascade Flow;
 Channel Flow;
 Computational Fluid Dynamics;
 Incompressible Flow;
 Separated Flow;
 Spatial Marching;
 Airfoils;
 Boundary Value Problems;
 Hyperbolic Differential Equations;
 Inviscid Flow;
 Poisson Equation;
 Pressure Distribution;
 Transport Theory;
 Fluid Mechanics and Heat Transfer