Naslov
Estimation of Drag Coefficient of a Bare Hull of a Submarine Moving in Different Directions
(Estimation of Drag Coefficient of a Bare Hull of a Submarine Moving in Different Directions)

Autori
Saghi, Hassan ; Mikulić, Antonio

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, prošireni sažetak, znanstveni

Izvornik
Proceedings of the 25th Symposium on Theory and Practice of Shipbuilding, In Memoriam prof. Leopold Sorta (SORTA 2022) / Degiuli, Nastia ; Martić, Ivana ; Farkas, Andrea - Zagreb : Fakultet strojarstva i brodogradnje Sveučilišta u Zagrebu, 2022, 27-28

ISBN
978-953-7738-86-0

Skup
25th Symposium on Theory and Practice of Shipbuilding, In Memoriam prof. Leopold Sorta (SORTA 2022)

Mjesto i datum
Malinska, Hrvatska, 07.09.2022. - 10.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
Submarine, Drag coefficient, Computational Fluid Dynamics

Sažetak
We developed a numerical model using Computational Fluid Dynamics to simulate the movement of a submarine with spherical heads moving in different directions and at different speeds in a viscous and incompressible fluid. Afterward, the drag coefficient of the submarine is estimated for different scenarios. Using the Nonlinear Least Squares Marquardt-Levenberg algorithm, we fit the best curve to the results of the drag coefficient based on length-to-diameter ratio of the bare hull and the Reynolds number. For different directions, regression equations are presented to estimate the drag coefficient.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja

POVEZANOST RADA