Numerical simulation research on wake evolution characteristics of underwater vehicle
The wake field of the standard model Suboff of underwater vehicle is studied numercially,with emphasis on the evolution and interference characteristics of wake flow of hull,rudder and sail.The results reveal that the hull wake velo-city quickly satisfies the self-similar characteristics of Gaussian distribution,and the wake velocity after the interaction between the hull and the rudder is close to the Gaussian distribution,but the wake velocity after the interaction between the hull and the rudder and the sail obviously does not meet the Gaussian distribution characteristics.Therefore,the research res-ults of numerical calculation make it clear that the influence of the rudder on the wake of the whole body can be ignored in the design,but it is necessary to consider the influence of the sail on the wake of the whole body.