Abstract:
In this study, the effects of fin stroke phase offset, flapping frequency, and freestream flow speed on thrust production are investigated for a median paired (pectoral) ...Show MoreMetadata
Abstract:
In this study, the effects of fin stroke phase offset, flapping frequency, and freestream flow speed on thrust production are investigated for a median paired (pectoral) fin – caudal fin configuration. Fin geometries and kinematics are selected to be representative of common bio-inspired unmanned vehicles as well as the fish that inspire them, and for this study the fins are rigid to limit the variable parameter space. Experimental results demonstrate a significant correlation between freestream flow speed and thrust-optimal stroke phase offset, as well as between fin flap speed and thrust-optimal stroke phase offset. The results also highlight differences between the time-histories of thrust at high- and low-thrust generating stroke phase offsets suggesting a significant difference in wake signatures. This study provides the foundation for development of a comprehensive analytical tool for flapping fin and vehicle design.
Published in: OCEANS 2018 MTS/IEEE Charleston
Date of Conference: 22-25 October 2018
Date Added to IEEE Xplore: 10 January 2019
ISBN Information:
Print on Demand(PoD) ISSN: 0197-7385