Design And Optimization of a Low-Noise and Low-Cavitation Torpedo Using Toroidal Propulsion and Acoustic Coating

Abstract

This project focuses on designing and improving an underwater torpedo to increase its speed, reduce noise, and minimize the chances of being detected. The torpedo is designed with a smooth and streamlined body to lower water resistance and allow for efficient movement. The body shape includes a hollow cylinder and a curved nose to ensure a good balance and stability in water. Instead of a traditional propeller, a toroidal propeller is used because it provides smoother water flow and generates more thrust with less energy loss. An acoustic coating is also applied to the outer surface to help reduce the noise created during movement. The performance of this design is studied using Computational Fluid Dynamics (CFD), which helps analyse water flow, pressure, velocity, and drag around the torpedo. The results show that the design provides stable movement, lower drag, reduced noise, and minimal cavitation. Overall, this study demonstrates that a combination of an improved body shape, advanced propulsion system, and sound-absorbing coating can enhance the efficiency and stealth capabilities of modern underwater torpedoes.