TY  - JOUR
TI  - An Investigation of Hydrodynamic Maneuvering Derivatives and Horizontal Stability of Darpa Suboff Depending on Depth
AB  - It is known that DARPA SUBOFF submarine model does not have a horizontal stability in deep water. In this study, the horizontal stability of submarine model moving during the periscope (snorkel) position or close to the free water surface, has been determined in 3 DoF (degrees of freedom). While determining the submarine stability and hydrodynamic maneuvering derivatives, linear coefficients of lateral translational force at different depths and linear coefficients of yaw angular moment were used. The depths were selected as 1.1D, 2.2D, 3.3D and 6D, here D is submarine diameter. The maneuvering derivatives were obtained by performing systematic analyzes with the computational fluid dynamics method. Necessary validation studies were also carried out in computational analyzes. In computational fluid dynamics analysis, longitudinal and lateral force derivatives, and yaw moment derivatives were determined and X0, Xv, Xd, Xẟ, Yv, Yr, Yẟ, Nv, Nr ve Nẟ terms were computed in the linear model. A hydrodynamic model was generated with these coefficients. The horizontal stability was then determined with the effects of different depths by using this hydrodynamic model. It has been found that the submarine model has horizontal stability when cruising close to the free water surface and loses its horizontal stability for water depths greater than 4.6D.
AU  - Bal, Sakir
AU  - Çavdar, Furkan
DO  - 10.54926/gdt.1084413
PY  - 2022
JO  - Gemi ve Deniz Teknolojisi
VL  - 0
IS  - 221
SN  - 1300-1973
SP  - 42
EP  - 58
DB  - TRDizin
UR  - http://search/yayin/detay/1158928
ER  -