WIT Press


On The Modeling Of Boundary Conditions For Embedded Schemes

Price

Free (open access)

Paper DOI

10.2495/FSI030221

Volume

71

Pages

12

Published

2003

Size

633.80 kb

Author(s)

E.L Mestreau, J.D Baum, R. Lohner, C. Charman & D. Pelessone

Abstract

On the modeling of boundary conditions for embedded schemes E.L. ~estreau', J.D. ~aum', R. ~ o h n e r ~ , C. charrnan3 & D. pelessone4 I Science Applications International Corporation, McLean, VA USA 2 George Mason University, Fairfax, VA USA 3 General Atomics, San Diego, CA USA E S ~ , San Diego, CA USA Abstract A simple embedded method for an unstructured grid is presented. An enhancement of the boundary treatments using ghost points is then described. Several examples are used to demonstrate the viability of the approach for inviscid flow simulations. 1 Introduction With recent new threats to civilian infrastructures, the fast and accurate assessment of potential blast damage to targeted structures is requiring the use of more and more complex coupled CFDICSD simulations. Two types of grids are commonly used: body conforming grids and embedded grids. For bodyconforming grids, the external mesh faces match up with the surfaces (CSD faces, and outer boundaries) of the domain. The embedded

Keywords