UNDERSTANDING FLOW CHARACTERISTICS OF SWIMMING SQUID USING 2D AXISYMMETRIC NUMERICAL MODEL

Mahdi TABATABAEI; Ali OLCAY; Gökhan GÖKÇEN; Abdulkerim OKBAZ; Hasan HEPERKAN

Article Details

UNDERSTANDING FLOW CHARACTERISTICS OF SWIMMING SQUID USING 2D AXISYMMETRIC NUMERICAL MODEL

Authors:

Mahdi TABATABAEI | Ali OLCAY | Gökhan GÖKÇEN | Abdulkerim OKBAZ | Hasan HEPERKAN

Publisher:

Süleyman Demirel University

Main Topics:

Applied physics

Journal:

Journal of Engineering Sciences and Design 2014 Vol.2 Issue 3, pp.293-297

Document Type:

Article

Publication Date:

12/2014

Document Language:

English

Document ID (Org No.):

2000603921

Frequency:

Quarterly

eISSN:

1308-6693

Abstract:

 

Squids in nature generate pulsed jet to be able to move by expelling high pressure water through funnel in a short period of time. In this study, unsteady jet flow of squids was investigated during its fast swimming phase. Numerical model has been generated from a real squid’s computer tomography images. 2D axisymmetric jet flow has been simulated by using dynamic mesh to mimic the motion of squid’s mantle cavity wall. Specifically, diameter of the squid’s mantle cavity decreases from 13 cm to 4 cm and a periodic sine velocity profile has been defined for squid’s mantle cavity wall. Besides, the funnel of squid seems to be a 3 cm long nozzle which has about 3 cm and 0.5 cm diameters at the inlet and outlet, respectively. Physical behaviors of jet flow has been investigated to be able to calculate change of ejected fluid’s momentum and flow energy in this study.

 

Squids in nature generate pulsed jet to be able to move by expelling high pressure water through funnel in a short period of time. In this study, unsteady jet flow of squids was investigated during its fast swimming phase. Numerical model has been generated from a real squid's computer tomography images. 2D axisymmetric jet flow has been simulated by using dynamic mesh to mimic the motion of squid's mantle cavity wall. Specifically, diameter of the squid's mantle cavity decreases from 13 cm to 4 cm and a periodic sine velocity profile has been defined for squid's mantle cavity wall. Besides, the funnel of squid seems to be a 3 cm long nozzle which has about 3 cm and 0.5 cm diameters at the inlet and outlet, respectively.  Physical behaviors of jet flow has been investigated to be able to calculate change of ejected fluid's momentum and flow energy in this study.

Article Details

UNDERSTANDING FLOW CHARACTERISTICS OF SWIMMING SQUID USING 2D AXISYMMETRIC NUMERICAL MODEL

Authors: Mahdi TABATABAEI | Ali OLCAY | Gökhan GÖKÇEN | Abdulkerim OKBAZ | Hasan HEPERKAN

Publisher: Süleyman Demirel University

Main Topics: Applied physics

Journal: Journal of Engineering Sciences and Design 2014 Vol.2 Issue 3, pp.293-297

Document Type: Article

Publication Date: 12/2014

Document Language: English

Document ID (Org No.): 2000603921

Frequency: Quarterly

eISSN: 1308-6693

Issues

Authors:

Mahdi TABATABAEI | Ali OLCAY | Gökhan GÖKÇEN | Abdulkerim OKBAZ | Hasan HEPERKAN

Publisher:

Süleyman Demirel University

Main Topics:

Applied physics

Journal:

Journal of Engineering Sciences and Design 2014 Vol.2 Issue 3, pp.293-297

Document Type:

Article

Publication Date:

12/2014

Document Language:

English

Document ID (Org No.):

2000603921

Frequency:

Quarterly

eISSN:

1308-6693