HEMLAB ALE Algorithm Applied to AIAA Rotorcraft Hover Prediction Workshop

Capabilities of In-house HEMLAB solver is extended by implementing an ALE approach. Developed algorithm is validated on 2D heaving and pitching NACA0012 cases proposed under HiOCFD4. Then, it is employed to asses the hover performance of S-76 main rotor. Since the rotor problems requires high resolution grids, adaptive mesh refinement is exploited in the study. pyAMG anisotropic metric mesh adaptation library was integrated to HEMLAB previously to do mesh refinement. In the study the capabilities of HEMLAB solver is further tested on such a complex flow physics. Three different Euler simulations are conducted to assess effects of the mesh adaptation and different flux schemes. Finally, it is shown that the algorithm works well for RANS simulations as well.