NEXT-GENERATION COMPUTATIONAL FLUID DYNAMICS CAPABILITY FOR AIRCRAFT AEROELASTICITY AND LOADS

Abstract

This paper presents some of the first results obtained from the recently implemented linear frequency domain solver in CODA, the next generation flow solver framework. It uses automatic differentiation capability to compute the exact product of the Jacobian matrix with an arbitrary vector. Perturbation results for subsonic and transonic LANN wing cases show good agreement with experiments and results computed using DLR-TAU code. Computations have been performed using both one- and two-equation turbulence models for the NASA Common Research Model. Scalability assessment of the frequency-domain solver demonstrates the advantage of hybrid MPI/OpenMP partitioning over pure MPI partitioning.