国际上新型潜艇的尾操纵面设计,采用了将前部稳定翼和后部转动舵组合成完整翼型剖面的共翼型布局方式.为了研究这种共翼型舵与常规舵在水动力性能上的差异,运用模型试验和数值计算模拟方法,对共翼型舵和常规非共翼型舵的水动力和流场进行了对比研究与分析.结果表明:共翼型舵在小舵角工况时能够保持舵翼结合部流线的光顺,舵角5°时共翼型舵总升力比非共翼型舵总升力增加了65.3%;但在大舵角工况,共翼型舵叶背容易发生流动分离形成分离涡,导致升力性能变差,舵角25°时共翼型舵总升力比非共翼型舵总升力减小了9.2%.在小舵角时,共翼型舵尾流区的流场湍动能较低,流动稳定性更好.%In the design on the firm maneuverable surface of a new international submarine,a conformal layout that integrates the front stable wing and the rear rotation rudder to form a complete wing-shape profile was applied.To study the difference in the hydrodynamic performance between the conformal rudder and the conventional rudder, model tests and numerical simulations were conducted along with hydrodynamic and flow field analyses.The results show that the conformal rudder could maintain the smoothness of the streamline at the connection with rudder wing at a small rudder angle.At a rudder angle of 5°,the total lift force of the conformal rudder was 65.3%greater than that of the conventional non-conformal rudder; whereas at large rudder angles, the detached vortex was easily dropped from the back of the conformal rudder and the lift performance deteriorated.At a rudder angle of 25°,the total lift force of the conformal rudder was 9.2%smaller than that of the conventional non-conformal rudder.The result indicates that the turbulent kinetic energy in the wake zone of the conformal rudder is low and flow stability is high at small rudder angles.
展开▼
