  We propose a novel three-way coupling method to model the contact interaction
between solid and fluid driven by strong surface tension. At the heart of our
physical model is a thin liquid membrane that simultaneously couples to both
the liquid volume and the rigid objects, facilitating accurate momentum
transfer, collision processing, and surface tension calculation. This model is
implemented numerically under a hybrid Eulerian-Lagrangian framework where the
membrane is modelled as a simplicial mesh and the liquid volume is simulated on
a background Cartesian grid. We devise a monolithic solver to solve the
interactions among the three systems of liquid, solid, and membrane. We
demonstrate the efficacy of our method through an array of rigid-fluid contact
simulations dominated by strong surface tension, which enables the faithful
modeling of a host of new surface-tension-dominant phenomena including: objects
with higher density than water can keep afloat on top of it; 'Cheerios effect'
about floating objects that do not normally float attract one another; surface
tension weakening effect caused by surface-active constituents.
