Naslov
CFD Study on the Influence of Exostructure Elements on the Resistance of a Submarine

Autori
Gatin, Inno ; Čokić, Juvel ; Romić, Darjan ; Parunov, Joško

Izvornik
Journal of Marine Science and Engineering (2077-1312) 10 (2022), 10; 1542, 14

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
submarine ; CFD ; hydrodynamic resistance ; exostructure

Sažetak
Submersible vessels designed to operate at low speeds are often designed with an intricate exostructure, as well as other elements that are located outside of the main pressure hull. Exostructure elements are often of cylindrical or rectangular shape, positioned perpendicularly to the flow direction. For this reason, their resistance coefficient is relatively large compared to the pressure hull or appendages of a classical submarine. In some cases, the exostructure can significantly increase the wetted surface of the vessel and dominate its resistance. This paper presents a study on how different exostructure elements impact the overall resistance of a submarine relative to the resistance of the cylindrical, smooth, pressure hull. Additionally, the effect of depth is also considered. The study is conducted using the RANS-based CFD method. The subject of the study is a 25 m long tourist submarine designed for depths up to 40 m and a speed of up to 3 knots.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja

POVEZANOST RADA