Author(s)

M. Felli, A. Romano, G.P. Romano

Abstract

Analysis of the wake of a ship model with a single screw propeller by means of LDV M. Felli', A. Romano % G.P. Romano^ ^ IN SEAN (Italian Ship Model Basin), Italy ^Department of Mechanics and Aeronautics, University "La Sapienza", Rome, Italy Abstract A phase sampling technique on random data acquired with LDV is developed to investigate the flow upstream and downstream a five blade installed propeller on a single screw ship model in a large circulating water channel. The technique allows the reconstruction of the 3D flow field for each angle of revolution along transverse planes located as close as possible to the blade trailing and leading edges. The main features of the propeller flow field are highlighted as well as the strong and complex interactions between the propeller itself and the hull wake. 1 Introduction The accurate analysis and knowledge of the propeller flow field in a non uniform inflow has a fundamental role in the naval field due to the fact that the propeller j

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