03.1 - Aerodynamics – CFD Methods and Validation
ENHANCING EFFICIENCY FOR UNSTEADY CFD COMPUTATIONS IN AERONAUTICS
M. Carlsson¹, P. Eliasson¹, P. Weinerfelt¹; ¹Saab, Sweden
SSAAB has developed a fully implicit approach for aeronautical CFD applications. We present further developments to reduce the computing time for unsteady problems by enhancing the implicit scheme to 1) speed up the rate of convergence and 2) to avoid unsteady calculations e.g. for dynamic derivatives by solving a linear system of equations. Basic and realistic applicaitons are presented.rn