S I D E V I E W
![](animations/flapping/crb-prefsihe-web2n.gif)
Vortex Structures
F R O N T V I E W
![](animations/flapping/crb-prefsihe-web3n.gif)
Pressure Fields
T O P V I E W
![](animations/flapping/crb-prefsihe-web4n.gif)
Transient Motion
3D W I N G F L A P P I N G with F S I
Computational fluid dynamics simulations were performed using an unsteady compressible flow solver (STORM) to determine the acoustic characteristics of a flexible membrane flapping wing for a Coconut Rhino beetle at hovering and forward flight conditions. CAESIM includes advanced capabilities for aerodynamic analysis of moving bodies in turbulent compressible flows, including rigid-body and flexible membrane fluid-structure interactions.
![](animations/flapping/crb-prefsihe-web1n.gif)
CAESIM simulates 3D transient wing flapping motion with compressibility and fluid-structure interaction (Funding: UOH - J. Allen)
3 D F L I G H T
![](animations/flapping/crb-prefsihe-web5n.gif)
Vorticity
I S O - V I E W
![](animations/flapping/crb-prefsihe-web6n.gif)
Pressure Waves
S T A T I C V I E W
![](animations/flapping/crb-prefsihe-web7n.gif)
Streamlines