OVERTURNS Simulation of S-76 Rotor in Hover

A compressible Reynolds Averaged Navier Stokes (RANS) solver (OVERTURNS) is used to perform high-fidelity CFD simulations of the S-76 rotor test cases. Parameters such as thrust and power coefficient, spanwise loading distributions as well as pressure profiles and spanwise vorticity magnitude profiles are plotted. The computational domain consists of a C-O topology structured blade mesh and a cylindrical background mesh for wake capturing. The simulations are run for a range of collective pitch values. In addition, a case of 10◦ collective pitch is studied in greater details by analyzing the tip vortex characteristics.