Methodology for Improvement of the Hydrodynamic Efficiency of an Amazon School Boat Utilizing a CFD Tool
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Breno Farias da Silva [1] ; Fernando Costa da Cruz [1] ; Harlysson Wheiny Silva Maia [1] ; Toshi-Ichi Tachibana [2] ; Vitor Hugo Macedo Cardoso [1] ; Yuri Victor Remígio Guedes [1]
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[1] Universidad Federal de Pará
Universidad Federal de Pará
Brasil
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[2] Universidade de São Paulo
Universidade de São Paulo
Brasil
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- Localización: Proceedings of the 25th Pan-American Conference of Naval Engineering—COPINAVAL / coord. por Adán Vega Sáenz, Newton Narciso Pereira, Luis Carral Couce, Jose Angel Fraguela Formoso, 2019, ISBN 978-3-319-89812-4, págs. 93-103
- Idioma: inglés
- Enlaces
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Resumen
The Solimões—Amazonas waterway is mainly composed of the Solimões and Amazonas Rivers, along with several tributaries of both, forming a network of almost 7000 km in length. Due to this, the waterway modal stands out in the transportation of passengers and cargo in the Amazon region. In sight of this scenario, the National Fund for Development of Education implemented in the region the “School Boat” project, originating from the Caminhos da Escola (School Path) program, whose objective is to provide a faster, safer, and more efficient transportation of students from the riverside regions to the schools. However, the medium boat model was the subject of complaints from users about the long duration of the journey. In order to analyze the hydrodynamic characteristics of the medium boat, the full-scale sea trials performed showed high residuary resistance values. Hence, it was noted the generation of a large amplitude wave train and a high bow wave height compared with the boat’s depth, implied a high fuel consumption for speeds that are incompatible with the design guidelines. These characteristics corroborate the low hydrodynamic efficiency of the hull. Based on this problem, the proposal of this work consists in the analysis of a numeric model for the medium school boat hull, based in CFD, correlated with the full-scale sea trials. In this scenario, the hull lines are modified and simulated, in comparison with the original model, in order to reduce the total resistance to advance of the vessel.
