WIT Press


A Comparison Of Different Radial Basis Functions In DRBEM Solution Of The Navier-Stokes Equations

Price

Free (open access)

Paper DOI

10.2495/BE980431

Volume

21

Pages

10

Published

1998

Size

797 kb

Author(s)

B. Sarler & J. Perko

Abstract

This paper describes the solution to transient incompressible two-dimen- sional Navier-Stokes equations in primitive variables by the dual reciprocity boundary element method. The coupled set of mass and momentum equa- tions is structured by the fundamental solution of the Laplace equation. The boundary is discretized into simplest boundary elements with constant field and straight line geometry. Numerical examples include convergence and accuracy studies for the classical driven cavity problem at Re = 100. The performance of thirteen different global approximation functions, based on conicals, thin plate splines, multiquadrics and Gaussians is shown, assessed by comparison with the Ghia-Ghia-Sh

Keywords