Numerical Simulation of Torpedo Receiving Tube of False Sea Test Facility Based on CFD

Receiving tube is an important component of false sea test facility. Its main function is to receive the launched torpedo coming along guide pipe, and to make the torpedo slow down and stop in it. In this study, the motion processes of a torpedo into the receiving tube are simulated with a series of parameters by making use of the shear stress transmission(SST) model and dynamic mesh in the commercial software CFD. The parameters include the receiving tube′s inside radii and length, the torpedo speed, etc. The effects of these parameters on the torpedo motion process are acquired. Simulations show that the process of a torpedo entering into the receiving tube has obvious nonlinear characteristics due to the effect of water. The simulation results may provide verification and support for design of receiving tube.