CAGD: COMPUTER AIDED GRID DESIGN

AS THE TREND CONTINUES TOWARDS EXPLOITING THE CAPABILITIES OF THE CURRENT GENERATION OF SUPER COMPUTERS TO MODEL COMPLEX 3D FLOW FIELDS, THERE WILL BE A NEED FOR ADVANCES IN GEOMETRY MODELING AND GRID GENERATION TECHNOLOGY TO KEEP PACE WITH ADVANCES IN NAVIER-STOKES ALGORITHMS. THE PROPOSED COMPUTER AIDED GRID DESIGN (CAGD) PACKAGE IS A STEPIN THAT DIRECTION. THE CAGD PACKAGE WILL BE DEVELOPED ON A SCIENTIFIC WORKSTATION BY COUPLING CAD GRAPHICS SYSTEM AND THE EXISTING GRID GENERATION CODES WITH APPROPRIATE STRATEGIES. CAGD WILL OFFER FAST, EFFICIENT, AND ECONOMICALRESPONSE TO GEOMETRICAL PREPARATION, ALLOWING ABILITY TO UPGRADE BASIC GEOMETRY IN STEP-BY-STEP FASHION INTERACTIVELYAND UNDER PERMANENT VISUAL CONTROL ALONG WITH MINIMIZING THEDIFFERENCES BETWEEN ACTUAL HARDWARE SURFACE DESCRIPTIONS ANDCORRESPONDING NUMERICAL ANALOG. ALONG WITH GEOMETRY-GRID DEFINITION FOR A TYPICAL CFD APPLICATION, CAGD WILL ALSO OFFER AN AUTOMATIC BOUNDARY CONDITIONS SET-UP FOR SELECTED WIDELY USED NAVIER-STOKES ALGORITHMS UTILIZED IN INTERNAL FLOW CONFIGURATIONS.