Effect of structural deformation on performance of marine propeller
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Das, H N. [1]
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[1] Defence Research & Development Organisation
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- Localización: Journal of maritime research: JMR, ISSN 1697-4840, Vol. 11, Nº. 3, 2014, págs. 43-49
- Idioma: inglés
- Enlaces
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Resumen
Propeller geometry is very crucial for its performance and a little deviation in shape can causechanges in its hydrodynamic performance. Hydrodynamic loading causes deformation to thepropeller blades, which leads to change in shape. Effect of this change of shape on hydrodynamicperformance of a propeller is being studied in the present paper. A five bladed bronze propeller ischosen for the analysis. Its open water efficiency was estimated for original and deformed shape.Pressure based Reynold’s Averaged Navier Stokes (RANS) equation was solved for steady,incompressible, turbulent flow through the propeller. Numerical solution was obtained using FiniteVolume Method (FVM) within Ansys Fluent software. FEM based solver of ANSYS MechanicalAPDL was used to make the structural calculations. Fluid-structure interaction was incorporated inan iterative manner. The study however shows very little change in its hydrodynamic performancedue to the deformation of propeller blades.
