  Key questions surrounding the origin and evolution of Titan and the Saturnian
system in which it resides remain following the Cassini-Huygens mission.
In-situ measurements performed at key locations on the body are a highly
effective way to address these questions, and the aerial-aquatic platform
proposed in this report serves to deliver unprecedented access to Titan's
northern surface lakes, allowing an understanding of the hydrocarbon cycle, the
potential for habitability in the environment and the chemical processes that
occur at the surface. The proposed heavier-than-air flight and plunge-diving
aquatic landing spacecraft, ASTrAEUS, is supported by the modelling of the
conditions which can be expected on Titan's surface lakes using multiphysics
fluid-structure interaction (FSI) CFD simulations with a coupled meshfree
smoothed-particle hydrodynamics (SPH) and finite element method (FEM) approach
in LS-DYNA.
