Left heart simulator
Left heart simulator

Flexible-walled physical model of the human left ventricle illuminated using a green laser sheet for visualization of fluid flow.

Feeding currents generated by upside-down jellyfish
Feeding currents generated by upside-down jellyfish

Dye injected along sandy surface is pulled sideways by pulsing jellyfish and moved vertically into the water column. Oral arms of the medusa aid in breakup of coherent large-scale vortices.

Wing-wing interaction in flapping flight of tiny insects
Wing-wing interaction in flapping flight of tiny insects

A robotic platform of 'clap and fling' interaction is used to provide kinematics corresponding to flapping flight in tiny insects with bristled wings. Vortex formation at the leading edge due to the fling interaction of wings is seen.

Flow generated during bell contraction of upside-down jellyfish
Flow generated during bell contraction of upside-down jellyfish

Streamlines showing how feeding currents of upside-down jellyfish interact with low-speed background flow moving left to right.  Starting vortices from multiple cycles are observed.

Tube worms in unsteady flows
Tube worms in unsteady flows

Feeding in Sabellidae (tube worms) is accomplished using branched feather-duster like appendages.

Porewater pumping by upside-down jellyfish
Porewater pumping by upside-down jellyfish

Green color dye is buried well underneath the sand below an upside-down jellyfish medusa to study porewater pumping. The dye is seen emerging through the sandy substrate due to bell pulsations.