Large Eddy Simulation of the NASA High-Lift Common Research Model
Konrad Goc, Sanjeeb Bose, Parviz Moin
Abstract
View Video Presentation: https://doi.org/10.2514/6.2022-1556.vid Large-eddy simulations of the NASA Common Research Model-High Lift at multiple angles of attack spanning the linear, maximal lift, and post-stall regime are computed at Re = 5.49×10^6 in a free air configuration. Simulations are conducted at multiple grid resolutions where near wall resolution is successively increased by factors of two, with finer resolutions showing near grid convergence across all angles of attack in integrated quantities (e.g., lift and drag coefficients). The finest resolutions considered show agreement with experimental data to within industrial targets for lift coefficients (ΔCL < 0.03) at CL,max. The accuracy of these predictions are corroborated by comparison of surface pressures with available experimental data. Lastly, by leveraging advances in numerical methods, grid generation, and GPU acceleration, solution on refined grids can be computed in several hours while utilizing relatively modest resource requirements.