The surfaces of small planetary bodies are covered with regolith which keeps evolving with time. Studying the dynamics of these regolith can explain various surface features observed in recent space explorations. We use a computationally efficient depth-averaged theory for dense granular flows to study the dynamics of regolith dunes on small planetary bodies. Extending the approach of 1, 2, we derive the governing equations in spherical coordinates. This framework is then used to simulate the evolution of regolith dunes on a spherical and (101995) Bennu shaped asteroid. We discuss the significant effects of Coriolis force and surface topography.
Gaurav et al. (Mon,) studied this question.