水下拖曳系统收放安全性的模拟计算

Numerical Calculation of the Security of Deploying and Retracting Underwater Towed System

为了对置于潜艇尾部的水下拖曳系统在收放缆时的安全性进行评估,计算了螺旋浆和艇体的尾流近场.螺旋桨的计算采用升力面理论涡格法,艇体的计算采用无升力体面元法,并考虑两者之间的相互作用.建立了水下拖曳系统在非均匀流场中的力学模型,用有限差分法计算收放缆时拖缆的姿态.计算结果表明,收放缆时的安全性是有足够保障的.

In order to evaluate the security of an underwater towed system which is deployed or retracted from the up stabilizer of a submarine, the near wake flow field of the propeller and hull was calculated. The vortex lattice method is used for the propeller based on the lifting surface theory, and the panel method is used for the hull, and also the interaction of the two parts is taken into account. A dynamic model of the towed system was established in the non-uniform wake flow field, and the shape of the towed system was investigated by finite difference method. The results of the calculation show that the security is enough for deploying and retracting cable.