LDV cross-flow survey on a Serie 60 double model at incidence

In the present paper a series of experiments devoted to analyse the shedding vortex system, arising from an unappended bare hull in large steady drift conditions, are presented. A Series 60 ship model (C(B)=0.6, length=1.219 m) which conforms to the standard offset has been selected to be investigated in the double-model configuration, for the sake of free surface effect exclusion. Mean velocity measurements of the cross-flow in two transverse sections are performed by using LDV technique for F(n)=0.2 and for a large yaw angle (35°) at R(n)=0.8 106. Present work describes a complex flow vortex development and represent a useful information data set to better understand the behaviour of manoeuvring vessel. Moreover, they can be useful in order to asses, further develop and validate current CFD capability for the prediction of flow fields around underwater bodies