THERMAL BEHAVIOR OF COATED BIO-POLYMERS

When it comes to designing a mini-submarine, the most important questions are what it should look like to achieve the purpose for which it was built and what propulsion force is required to operate it at expected parameters. This paper aims to answer some of these questions using a numerical analysis designed to optimize the body shape using the Ansys CFX software package. The mini-submarine understudy is research one and it is equipped with eight thrusters. The optimization aims to choose an optimal body shape between the frame type which is the simplest, cheapest, easiest to execute and offers easy access to all components, and the closed hull type which is more compact has lower hydrodynamic resistance, but is difficult to execute, is expensive and difficult to access inside for interventions and inspection. The cases of study are incompressible turbulent flow for a complete submerged body, distinguished by the complexity of the form and the conditions under which the computation must be performed. The simulation will be done at several speeds, according to the known power of the thrusters in steady-state conditions. The results will be compared whit measuring data, analyzed, and presented comparatively base on hydrodynamic resistance and speed, but will be discussed the other criteria as well.