Experimental research and numerical simulation on azimuth thruster with contra-rotating propellers
In order to study the open water performance of azimuth thruster with contra-rotating propellers(CRP),model experiment and numerical simulation are carried out.Due to the difference of size and Reynolds number between model-scale propeller and full-scale propeller,the flow field characteristics will change,and the interference effect of lower housing to Azimuth thruster with CRP should not be ignored.Numerical simulation based on CFD are applied to predict the open water performance of Azimuth thruster with CRP at model scale and full scale.The simulation results agree well with the experimental values,showing that the method is reasonable.The scale effect is mainly reflected in the difference between the performance of the aft propeller and the resistance of the lower housing.The flow separation of the trailing edge of the strut is significant at the model scale,influencing the performance of the aft propeller.The scale effect on the inflow to the aft propeller has to be taken into account.Standard scaling methods neglect the scaling effect on the inflow velocity to the aft propeller.
azimuth thruster with CRPexperimental researchcomputational fluid dynamicsopen water performancefull scalemodel scalescale effectflow separation
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维普
