New paper on sliding meshes for turbomachinery

Simulating a turbomachinery stage means letting parts of the geometry move past one another, so that the wakes shed by a moving blade row arrive at the row behind it. In a new paper in International Journal of Turbomachinery, Propulsion and Power, J. Ye, G. Vivarelli, J. Isler, D. Moxey, S. Sherwin and C. Cantwell add a sliding mesh capability to the compressible flow solver in Nektar++, coupling the static and moving regions across a non-conformal interface by point-to-point interpolation. It is verified on an isentropic vortex and Couette flow, then validated on the T106A low-pressure turbine cascade with a translating upstream bar that emulates rotor-stator interaction.