Abstract
Torpedoes and Autonomous Underwater Vehicles (AUVs) are remotely operated vehicles with the various applications. These vehicles are imposed with high density, incompressible and high turbulence flows, while operating in sea conditions at below 25-meter depth. This study aims to analyze the turbulence intensity variation behind the geometry and co-efficient of drag of the geometry. The turbulence intensity and co-efficient of drag are obtain for the fixed boundary conditions with the various hull geometry. For this study velocity of the flow fixed as 25 m/s and operating pressure of the flow fixed as the atmospheric pressure of sea-water in the depth of 30m from sea-level. In the computational analysis was used ICEM 16.0 for generating grids and ANSYS-Fluent 16.0 as a solver. Results of velocity vector were analyzed and showed. From the results, optimum geometry was found. And turbulence intensity variation behind the model with respect to X and Y axis distance were plotted for 0- and 7-degree angle of attack. From that turbulence intensity variation with respect to angle of attack was observed.
Published Version
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