DEMBody is an Open Source software for Granular Dynamics Simulation for Planetary Science and Geophysics. DEMBody stands for Discrete Element Model Body, which incorporates classical granular dynamics simulations and N-body self-gravity calculation. The software implements the Soft-Sphere Discrete Element Model (SSDEM), coupled with the N-body gravity integrator. Parallized with OpenMP (for shared memory systems), DEMBody can execute on supercomputers, clusters or multi-core PCs running a Linux-based (or Windows, but not recommended) operating system.

The software focus on investigation of geological features, surface evolution and in-situ exploration on small celestial bodies, e.g., size sorting/segregation on asteroids, mass creeping/wasting during geological processes and locomotion dynamics of the small body lander/rover on granular regolith. But it can be easily customized to accurately and efficiently solve other problems in astrophysics, e.g., simulating planetesimals, moons, ring or dust particles. If you use this code or parts of this code for results presented in a scientific publication, we would greatly appreciate a citation eithor to this code or to our published papers. Please find details for DEMBody Terms of Use in this website.