© Chengyu Li

Bio-Inspired Propulsion

Butterfly Takeoff

We utilize an integrated experimental and computational approach to study the flow physics underlying complex biological locomotion.

Dragonfly Turning Maneuver

We integrated high-speed photogrammetry, 3D surface reconstruction, and immersed-boundary-method-based numerical simulations to explore the underlying flow physics of freely flying dragonfly in turning maneuver.

Pitching-Rolling Plate

The wake topology and propulsive performance of low-aspect-ratio plates undergoing a pitching-rolling motion in a uniform stream were numerically investigated by an in-house immersed-boundary-method-based incompressible Navier-Stokes equation solver. 

Effects of a Dynamic Trailing-edge Flap in Hovering Flight

To examine the effects of wing morphing on unsteady aerodynamics, deformable flapping plates were numerically studied in a low-Reynolds-number flow. 

Positive dynamic camber

Negative dynamic camber