共翼型舵特性及其对潜艇潜浮运动影响研究

共翼型舵是一种新型的潜艇组合舵翼操纵面.文章首先通过水洞试验和CFD计算对共翼型舵的敞水水动力性能进行了研究,结果表明,共翼型舵的舵效随弦长比和展弦比增大,封堵舵翼之间的间隙可以显著提高舵的水动力性能.随后通过CFD计算对比了分别安装有普通舵、共翼型舵和封堵缝隙的共翼型舵的潜艇的潜浮运动,结果显示,5°舵角时,安装共翼型舵和封堵缝隙的共翼型舵的潜艇模型潜浮角分别比安装普通舵的模型提高65％和105％左右.

Study on the Characteristics of Conformal Rudders and Their Influence on Vertical Plane Maneuver of Submarines

A conformal rudder is a new kind of submarine stern control surface composed of a fixed fin and a rotatable rudder. Water tunnel test and numerical simulation based on RANS method were car-ried out to investigate the open water hydrodynamic performance of a conformal rudder. It is found that sealing the gap between the rudder and the fin can effectively improve the hydrodynamic performance of the rudder by suppressing the flow separation. The rudder lift increases with chord ratio and aspect ratio. Simulation was carried out to study the maneuvering in the vertical plane of the submarine equipped with a conventional rudder, a conformal rudder and a gap-sealed conformal rudder respec-tively. The results indicate that the conformal rudder and the gap-sealed conformal rudder can in-crease the diving-surfacing angle of the submarine model by 65％and 105％respectively at a rudder angle of 5°.