Deformable Tube VIV

Simulation of the fluid/structure interaction that dominates the dynamics of these flows poses a formidable challenge to even the most advanced numerical techniques, and is currently at the forefront of ongoing work in computational fluid dynamics. A major challenge in the implementation of any non-boundary conforming methodology is the establishment of the relation between the Lagrangian coordinates of the body and the underlying Eulerian grid and the imposition of boundary conditions.

Understanding vortex-induced vibration of deformable structures in fluid flow.

A deformable tube immersed in a flow of viscous fluid with flow directed from left to right. The tube ends are fixed.

Instantaneous streamlines and pressure contours show the tube oscillation under fluid pressure and shear stresses.

The simulation demonstrates VIV phenomena in deformable structures.