Simplified Method for Design and Analysis of Non-Cavitating Thrusters: Validation and Comparison

• DOI: 10.22533/at.ed.317382317038

• Palavras-chave: Propellant; numeric method; optimization; Levenberg-Marquardt.

• Keywords: Propellant; numeric method; optimization; Levenberg-Marquardt.

• Abstract:

  The analysis of marine thruster designs can use several methods, each of which has a different degree of complexity and computational effort, empirical models, blade element theory, vortex theory, airfoil, airfoil, panel method and computational fluid dynamics are some examples. The present work evaluates and reviews thruster design methods related to Theodorsen and Goldstein's Vortex theory, proposing a simplified and fast method both for calculating a known thruster and for generating optimized geometry. The influence of the Reynolds number on the hydrodynamic parameters in terms of lift and drag was considered and the Levenberg-Marquardt method was applied to solve the set of equations. Despite these methods being relatively known, there are few works that present applications of the method and analyzing the results with comparisons.