A ROBUST UNSTEADY INCOMPRESSIBLE NAVIER STOKES CODE

THE MISSION OF THIS PHASE I PROJECT IS TO DEVELOP A ROBUST AND ACCURATE COMPUTER CODE FOR PREDICTING INCOMPRESSIBLE TRANSIENT TURBULENT FLOWFIELDS USING AN INTEGRAL (FINITE VOLUME) TECHNIQUE. THE CODE WILL BE APPLICABLE TO BOTH EXTERNAL AND INTERNAL FLOW GEOMETRIES,WILL BE CONSTRUCTED IN A GENERALIZED COORDINATES FRAMEWORK, BE OPERABLE EITHER FULLY ELLIPTIC OR PARABOLIC-ELLIPTIC, AND POSSESS A TWO EQUATION K-E CLOSURE SYSTEM WITH ALGEBRAIC REYNOLDS STRESS TENSOR MODEL. COMPARISONS TO AVAILABLE CRITICAL EXPERIMENTAL DATA WILL BE CREATED, AND THE CODE WILL BE DELIVERED OPERABLE FOR A VAX 11/78 ENVIRONMENT. THE CFD THEORY WILL ACCURATELY SIMULATE UNBOUNDED ACOUSTIC SPEED, WILL EXHIBIT ROBUST CONTROL OF ALL ARTIFICIAL DIFFUSION MECHANISMS, WILL EMPLOY A VARIABLE IMPLICIT TIME-INTEGRATION PROCEDURE AND WILL FUNCTION ON AN EFFICIENT TENSOR PRODUCT FACTORIZATION OF THE LINEAR ALGEBRA JACOBIAN.