Development and Application of Temporal Adaptation Methods to Computationally Intensive CFD Simulations

摘要

To achieve the next generation rotorcraft design goals, in-depth, high fidelity analysis of complex nonlinear aerodynamic and aeroelastic behavior must be accomplished earlier in the design stage. The use of computational fluid dynamics (CFD) is restricted by intensive computational time necessary for time-accurate simulation of the rotating components. While many research areas focus on spatial adaptation to improve these numerical methods, only a few have focused on developing temporal adaptation to accelerate these computations in the time domain. Results from numerical experiments involving nonlinear separation and reattachment on dynamic motion of airfoils are used to further automate and increase the robustness of a proposed temporal adaption approach.