TY  - JOUR
TI  - Hydrodynamic Investigation of a Submarine Moving Under Free Surface
AB  - Submerged bodies are commonly used in many fields such as scientific researches, military and commercialapplications. Especially in military applications, submarines have a significant role as a silent and deterrentvehicle. Contrary to popular belief, submerged bodies also operate in shallow depth that free surface effectscome into play. This causes the visual identification of submarines while protecting them from sonardetection. This study focuses on the investigation of free surface effects on submarine hydrodynamics movingforward in different depths. The numerical calculations have been conducted at different Reynolds numbersranging from 1.5x107 to 3.5x107 for both bare and appended forms of DARPA Suboff. A commercial CFD solverhas been used to solve URANS equations with k-ε turbulence model. The numerical approach has first beenverified and validated with the available experimental data. Later, the numerical results have been discussedin terms of total resistance, resistance components and free surface deformations. It has been concluded thatthe submergence depth has a significant role on resistance components for depth Froude number larger than0.7 and the appendages have little effect on free surface deformations in all depths.
AU  - Dogrul, Ali
DO  - 10.5505/jems.2019.42204
PY  - 2019
JO  - Journal of Eta Maritime Science
VL  - 7
IS  - 3
SN  - 2148-9386
SP  - 212
EP  - 226
DB  - TRDizin
UR  - http://search/yayin/detay/339216
ER  -