Simulations for the precession experiment at HZDR

The project DRESDYN (DREsden Sodium facility for DYNamo and thermohydraulic studies) conducted at Helmholtz-Zentrum Dresden-Rossendorf (HZDR) provides a new platform for a variety of liquid sodium experiments devoted to problems of geo- and astrophyscal magnetohydrodynamics.
Most ambitious experiment will be a precession driven dynamo experiment which consists of a large cylindrical cavity lled with liquid sodium that will simultaneously rotate around two axis.
The experiment is motivated by the idea of a precession-driven ow as a complementary energy source for the geodynamo or the ancient lunar dynamo. My presentation addresses corresponding numerical examinations aimed at an optimization of the precession driven ow with regard to improve the dynamo process in the planned experiment.