AMR-Wind: Adaptive mesh-refinement for atmospheric-boundary-layer wind energy simulations

The ExaWind project is targeting high-fidelity simulations of wind farms in realistic atmospheric conditions. To help achieve this goal the ExaWind project has recently added the flow solver AMR-Wind to its software stack. AMR-Wind is an incompressible flow solver built using the AMReX library. The AMReX library enables performance portability (i.e. same code base runs on CPUs and GPUs), scalable linear solvers, and mesh adaption capabilities. In this talk we will give an overview of AMR-Wind, describe the discretization, and show our progress towards verifying and validating AMR-Wind. Validation studies will include relevant atmospheric boundary layers such as N02 (Pedersen 2014) and GABLS. In addition we will show weak and strong scaling performance studies performed on ORNL's Summit supercomputer.