Effect of speed and hull length on the hydrodynamic performance of a semi-planing hull of a shallow-draft watercraft

Hydrodynamic performance is an essential factor in the design of a watercraft, and the navigation scenario determines the complexity of its operation. This study aims to identify the effect of speed and length on the hydrodynamic behavior of a semi-planing watercraft in shallow waters. A computational fluid dynamics tool was employed to predict the trim, heave, and resistance parameters of two different hulls: a base hull and a craft with an increased hull length. The two hulls had similar hydrodynamic characteristics. The effects of speed and hull length on these predicted parameters obtained for the two hulls were compared. The results showed a low resistance uncertainty and a reduction in dynamic trim for longer hull lengths. These findings highlight the importance of considering balance and dynamic trim in designing shallow-draft watercrafts to ensure an optimal performance in specific conditions, such as rivers with depth restrictions.

• Autores: Leal Ruiz, Luis Daniel; Camargo Díaz, Clara Paola; Paipa Sanabria, Edwin; Castro Faccetti, Claudia Fernanda; Candelo Becerra, John Edwin
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2023
• Institución: Corporación Universidad de la Costa
• Repositorio: REDICUC - Repositorio CUC
• Idioma: eng
• OAI Identifier: oai:repositorio.cuc.edu.co:11323/13553
• Acceso en línea: https://hdl.handle.net/11323/13553; https://repositorio.cuc.edu.co/
• Palabra clave: Shallow-draft watercraft; Computational fluid dynamics; Trim; Heave; Speed; Shallow-water navigation
• Rights: openAccess
• License: Atribución 4.0 Internacional (CC BY 4.0)