Synergy of Multiple Cylinders in Flow Induced Motion for Hydrokinetic Energy Harnessing.

[摘要] Vortex Induced Vibrations for Aquatic Clean Energy (VIVACE) Converter is a converter of marine hydro-kinetic (MHK) energy invented in the Marine Renewable Energy Lab (MRELab). It harnesses MHK from ocean currents. Using passive turbulence control, VIVACE maximizes and utilizes flow induced motion in the form of vortex induced vibration (VIV) or interference/proximity/wake/soft/hard galloping. MRELab has achieved back-to-back VIV and galloping for a single cylinder with passive turbulence control thus more than doubling the range of synchronization of flow induced motion. The goal of this research is to maximize the synergy of multiple cylinders in flow induced motion (FIM) for MHK energy harnessing in order to increase the power volume density. In order to achieve this goal, the effects of tandem spacing, staggering, passive turbulence control, mass ratio, spring stiffness, damping, and number of cylinders in FIM of multiple cylinders are studied experimentally. All model tests were conducted at high Reynolds numbers in the range of 28,000

[发布机构] University of Michigan

[效力级别] Multiple Cylinder

[关键词] Flow Induced Motion;Multiple Cylinder;Energy Conversion;Renewable Energy Converter;Mechanical Engineering;Engineering;Mechanical Engineering