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Numerical Prediction of Hydromechanical Behaviour of Controllable Pitch Propeller
Author(s) -
S Tarbiat,
Hassan Ghassemi,
Manouchehr Fadavie
Publication year - 2014
Publication title -
international journal of rotating machinery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.265
H-Index - 33
eISSN - 1026-7115
pISSN - 1023-621X
DOI - 10.1155/2014/180725
Subject(s) - reynolds averaged navier–stokes equations , propeller , fretting , wake , mechanics , computational fluid dynamics , advance ratio , solver , blade pitch , physics , marine engineering , computer science , structural engineering , engineering , turbine , programming language , thermodynamics
The research described in this paper was carried out to predict hydrodynamic and frictional forces of controllable pitch propeller (CPP) that bring about fretting problems in a blade bearing. The governing equations are Reynolds-averaged Navier-Stokes (RANS) and are solved by OpenFOAM solver for hydrodynamic forces behind the ship’s wake. Frictional forces are calculated by practical mechanical formulae. Different advance velocities with constant rotational speed for blades are used to achieve hydrodynamic coefficients in open water and the wake behind the propeller. Results are compared at four different pitches. Detailed numerical results of 3D modelling of the propeller, hydrodynamic characteristics, and probability of the fretting motion in the propeller are presented. Results show that the probability of the fretting movement is related to the pitch

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