Experimental Investigation on Passive Control of Local Detached Vortex Structures Around Dead Wood
Concentrated on the requirement of controlling local detached vortex structures from dead wood,a simplified ship body was designed to reflect the principal feature of the dead wood.Semi-circle and triangle control scheme were recommended.Flow features shown by cavitation for the two control schemes together with the original one were tested in a cavitation tunnel.It was revealed that both control schemes were available.Vortex strength and its influencing distance were suppressed significantly.In the same flow condition,the triangle scheme appeared predominance over the other and showed good potential in application.The results will provide support for the control scheme in the engineering.
dead woodlocal detached vortex structurespassive controlexperimental investigation
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