Patent ID: 6424923
Filing Date: 2002-07-23
Classification: G01M,Y10T

Abstract:
A method for computing three dimensional unsteady flows about an object comprising the steps of:establishing an allowable error for vorticity term calculations; reading object geometry for providing points on a surface of an object; establishing a region of interest about said object; establishing a mesh incorporating said provided points; setting initial flow conditions about said surface; setting vorticity values at said provided points near said surface for satisfying boundary conditions; establishing a new mesh incorporating the provided points and other points in said region of interest; generating boxes including the provided points and other points; calculating velocities and pressures at each point from the initial flow conditions, vorticity values and boundary conditions; recording point positions, velocities, pressures and vorticity values for each point; incrementing a time variable; moving each point by applying the calculated velocity; recalculating vorticity for each point; and iterating said method starting with said step of satisfying boundary conditions until said incremented time variable exceeds a predetermined time.