Non-conformal simulations in the high-order code Nek5000

Our continuing work on extending the open-source code Nek5000, based on the high-order spectral element method, has now reached a level of maturity such that we can – for the first time – perform simulations of turbulence in complex geometries. Adaptive mesh refinements allows to dynamically change the mesh to zoom into those regions where increased resolution is necessary. At the same time, much larger domains can be considered, leading to less dependence on external boundary conditions.