numerical Modeling


Numerical models help us investigate the physics, theory, and observations in a controlled way. We have designed, employed, or collaborated on models to address a variety of planetary themes including impact cratering, thermal modeling, and sediment flow. 


Mars fan and delta formation

We investigated whether the Hypanis deposit on Mars could have formed subaerially as an alluvial fan, subaqueously as a river delta, or during a falling water level indicative of a receding northern ocean.

Tycho crater ejecta distribution

A 3D impact hydrocode (iSALE-3D) is used to simulate the Tycho crater impact event on the Moon. We propagate impact ejecta ballistically to investigate the distribution of melt and rock.

Asteroid thermal spin-up

The orbital distance and spin rate of an airless body can be changed merely by asymmetric heating (Yarkovsky and YORP effects). We calculate these effects on a shape model of asteroid Itokawa using a 3D ray-tracing thermal code.

Mud flows in extreme environments

Sediment flows on other planets can behave differently than on Earth due to extreme temperatures and atmospheric pressures. We run simulations in COMSOL multiphysics to explore how sediment and environment parameters can affect the resulting morphology.

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