Drag force and jet propulsion investigation of a swimming squid

• Main Authors: Tabatabaei, M., Olcay, A.B., Gokçen, G., Heperkan, H.A.
• Other Authors: Yeditepe Üniversitesi
• Format: Conference Object
• Language: English
• Published: EDP Sciences 2020
• Subjects: Gentoo penguin
• Online Access: https://hdl.handle.net/20.500.11831/2102

In this study, CAD model of a squid was obtained by taking computer tomography images of a real squid. The model later placed into a computational domain to calculate drag force and performance of jet propulsion. The drag study was performed on the CAD model so that drag force subjected to real squid was revealed at squid's different swimming speeds and comparison has been made with other underwater creatures (e.g., a dolphin, sea lion and penguin). The drag coefficient (referenced to total wetted surface area) of squid is 0.0042 at Reynolds number 1.6x106 that is a %4.5 difference from Gentoo penguin. Besides, jet flow of squid was simulated to observe the flow region generated in the 2D domain utilizing dynamic mesh method to mimic the movement of squid's mantle cavity. © 2015 Owned by the authors, published by EDP Sciences. DANTEC DYNAMICS GmbH;LaVision;MECAS ESI s.r.o.;MIT s.r.o.;TSI GmbH 9th International Conference on Experimental Fluid Mechanics, EFM 2014 -- 18 November 2014 through 21 November 2014 -- -- 112970