Effect of geometrical features on the contra-rotating propeller hydrodynamic performances
Dublin Core
Title
Effect of geometrical features on the contra-rotating propeller hydrodynamic performances
Description
New contra-rotating four-bladed DTMB propeller configurations operating in open water are numerically studied to determine their hydrodynamic performances. The unsteady turbulent flow around propellers is modelled by RANS equations with Kω SST model then solved by a CFD code. The computational domain is divided in two blocks linked with a rotating interface. The obtained results show that thrust and efficiency of the contra-rotating (CRP) increase compared to the single propeller, leading to a significant reduction of the propeller diameter. The variation in axial spacing and angular displacement seems to have little effect on the CRP efficiency. The results also show that the thrust can be further improved by adopting a moderate negative twist angle of the rear propeller.
Keywords: CRP contra-rotating propeller, axial spacing, angular spacing, twist angle, CFD.
Keywords: CRP contra-rotating propeller, axial spacing, angular spacing, twist angle, CFD.
Creator
Bouregba, F.
Belkadi, M.
Aounallah, M.
Adjlout, L.
Source
Journal of Naval Architecture and Marine Engineering; Vol. 17 No. 2 (2020); 129-141
2070-8998
1813-8535
Publisher
Association of Naval Architects and Marine Engineers
Date
2020-12-26
Rights
Copyright (c) 2020 Journal of Naval Architecture and Marine Engineering
Relation
Format
application/pdf
Language
eng
Type
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Identifier
Citation
F Bouregba. et al., Effect of geometrical features on the contra-rotating propeller hydrodynamic performances, Association of Naval Architects and Marine Engineers, 2020, accessed November 22, 2024, https://igi.indrastra.com/items/show/3318