A coupled formulation of fluid-structure interaction and piezoelectricity for modeling a multi-body energy harvester from vortex-induced vibrations
- Ramirez, Jose Miguel
DOIAbstract
In this work, a coupled formulation for modeling multiple piezoelectric energy harvesters based on vortex-induced vibrations phenomenon at arbitrary locations was presented and experimentally validated. The mathematical formulation was performed by coupling the Navier-Stokes equations for incompressible fluid-flow, the Gauss law for piezoelectric equations and, a mass-spring-damper system for representing the oscillating rigid body. Piezoelectricity was described by a mixed formulation coupling mechanical and electrical variables. The coupled formulation was numerically implemented into a new OpenFOAM library. The library could be configured to add various piezoelectric materials for both types of wire connection, in series and in parallel....
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