摘要
潜艇尾操纵面形式上类似船用襟翼舵,但实际上是一种不同的组合翼舵。由于前段固定翼尾流的影响,组合翼舵在小舵角时舵力可能出现非线性特征。本文设计了两个二维的组合翼舵,并采用CFD方法进行了比较分析。结果表明:某些情况下(如文中的算例二),小舵角时的舵力非线性特性非常显著,舵力不仅不能简单地采用线性方程来表述,而且还应该加密试验测点,才能合理地描述舵力随舵角的变化规律。文中给出的定量结果还有待于物理模型试验的验证,但本研究所揭示的现象值得在今后的物理模型试验研究中予以关注。
A stern-plane of submarine is generally comprised of one fore-fixed wing and one aft-turnable flap, or control plane, or rudder. The normal force, Z, of the stern-plane is usually considered as varied linearly with the angle of rudder, δ, i.e., Z（δ）=Zδ·δ, but some nonlinear characteristics were found in the past model tests. Two examples of 2D stern-plane configurations are simulated by Fleunt6.0 in this paper. It is confirmed there exists nonlinear phenomenon, even at small angles of rudder, and it is suggested the 3 normal force is to be expressed in the formula Z（δ）=Zδ·δ＋Zδδδ·δ^3.
出处
《船舶力学》
EI
北大核心
2008年第1期54-58,共5页
Journal of Ship Mechanics
关键词
潜艇操纵性
组合翼
舵力
CFD
submarine maneuverability
control plane
normal force
CFD
