Design Optimization of Submarine Outer Shell for Reduced Drag

Abstract

Fluid-structure interaction (FSI) is a multidisciplinary field that investigates the dynamic behaviour of fluid flows and structures interacting with each other. This research paper provides an overview of the key concepts, modelling techniques, and analysis methods used in FSI studies. We explore the significance of FSI research across a submarine. The paper aims to highlight the numerical simulation for design optimization of submarine outer shell for reduced drag. Validation of the research work is done by utilizing the previous results, which was found satisfactory. Ansys Fluent 2023 R2 is used for performing simulations. LES (Large Eddy Simulation) technique is used for performing 3-D numerical simulations of water flowing across submarines. Drag force values are found for Reynolds number and for different geometry of submarine. It was found that the change in the outer shell geometry of submarine have a significant effect on the drag experienced by the submarine.