Research on Hydrodynamic Interference of a DSRV and a Wrecked Submarine

Abstract

In this paper, the viscous flow method based on Computational Fluid Dynamics (CFD) is used to simulate the hydrodynamic interaction of the Deep Submergence Rescue Vehicle (DSRV) involved in the rescue of a wrecked submarine. As the object of study, the drag of the DSRV moving in unbounded flow field is numerically calculated and the calculation results are compared with the experimental values to validate the accuracy of the numerical method. When the DSRV approaches the wrecked submarine in a positive flotation in quasi-static way, the effects of different inflow velocities and the distance between the two objects on the DSRV’s drag, lift and pitching moment are simulated and monitored. The results show that when the DSRV is far away from the wrecked submarine, it is subject to the repulsive force from the submarine; when the distance is gradually reduced, the repulsive force is reduced until becoming suction; when the two objects are docking, the DSRV is subjected to the repulsive force from the submarine. This study will provide a reference for the operation of DSRV drivers.