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Journals / Mühendislik Bilimleri ve Tasarım Dergisi / 2014 / Cilt: 2 Sayı: 3

INVESTIGATION OF HYDRODYNAMIC DRAG IN A SWIMMING SQUID

Mahdi Tabatabaeı
Ali Olcay
Gökhan Gökçen
Abdulkerim Okbaz
Hasan Heperkan
Pages
287–291
Publication Date
2014-12-30
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It has been noted that streamlined shape of the squid affects drag force associated with total wetted surface area and flow separation; more specifically, streamlined shape both helps to have delayed flow separation and in return to have lower drag coefficient

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, hydrodynamic drag on an adult squid was investigated during its fast swimming phase.
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Key Findings & Data:Numerical model has been generated from a real squid’s computer tomography images.
💡
Conclusion & Impact:It has been noted that streamlined shape of the squid affects drag force associated with total wetted surface area and flow separation; more specifically, streamlined shape both helps to have delayed flow separation and in return to have lower drag coefficient
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Hydrodynamic Drag · Swimming · Fineness Ratio

Abstract

In this study, hydrodynamic drag on an adult squid was investigated during its fast swimming phase. Numerical model has been generated from a real squid’s computer tomography images. It has been documented that squids can typically swim at velocities from 3.21 m/s to 9.23 m/s under the water. Therefore, by considering the flow on squid’s surface and behind the squid, variation of drag coefficients (at these velocities) has been studied for the squid having about 7.58 fineness ratio. It has been noted that streamlined shape of the squid affects drag force associated with total wetted surface area and flow separation; more specifically, streamlined shape both helps to have delayed flow separation and in return to have lower drag coefficient

Özet

In this study, hydrodynamic drag on an adult squid was investigated during its fast swimming phase. Numerical model has been generated from a real squid's computer tomography images. It has been documented that squids can typically swim at velocities from 3.21 m/s to 9.23 m/s under the water. Therefore, by considering the flow on squid's surface and behind the squid, variation of drag coefficients (at these velocities) has been studied for the squid having about 7.58 fineness ratio. It has been noted that streamlined shape of the squid affects drag force associated with total wetted surface area and flow separation; more specifically, streamlined shape both helps to have delayed flow separation and in return to have lower drag coefficient.

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Cite This Article

Tabatabaeı, M., Olcay, A., Gökçen, G., Okbaz, A., Heperkan, H. (2014). INVESTIGATION OF HYDRODYNAMIC DRAG IN A SWIMMING SQUID. Mühendislik Bilimleri ve Tasarım Dergisi, Cilt: 2 Sayı: 3, 287–291. https://ajindex.com/articles/1430933

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