We are pleased to announce the publication of a new research paper titled “Preliminary design guidelines for a vortex-based energy harvester for water flows”.
This study offers early-stage design guidance for vortex-induced vibration energy harvesting (VIEH) devices, with a specific focus on their application in water flow environments. By leveraging high-quality computational fluid dynamics (CFD) simulations, the research systematically investigates the oscillatory behavior of flow-induced vibrating cylinders in cross-flow configurations.
The paper explores the effects of key structural parameters—mass, damping, and stiffness—on device performance. After thoroughly validating the numerical model, the authors developed design maps that correlate essential flow characteristics with the primary variables involved in efficient energy recovery.
Key Findings Include:
Lock-in conditions are optimally achieved at a reduced velocity of approximately 5.
The density ratio is a critical parameter for design, with effective performance occurring at values near 10.
The study highlights nondimensional groups that govern system physics and provides practical design recommendations based on these insights.
These findings contribute valuable knowledge to the field of fluid-structure interaction and pave the way for the development of more efficient and adaptable VIEH devices in real-world aquatic environments.
