摘要
水下拖缆拖曳运动时的受力分析是拖缆系统设计的关键因素。建立拖缆稳态运动的动力学微分方程,将拖缆受到的流体力分为切向力和法向力,水动力系数的准确求解决定了拖缆的位形和受力计算准确性。采用有限体积法离散标准k-ε湍流方程求解拖缆的水动力系数,水动力系数与攻角和Re有关。数值计算的结果与相关实验数据比较表明水动力系数的求解方法是可靠的。
Force analysis of the underwater towing cable in towing movement is a key factor in towed system design.In the dynamic differential equation of towing cable steady motion,the fluid forces include the cable into tangential and normal force.Solving hydrodynamic coefficients decides calculation accuracy about form and force of the towing cable.Hydrodynamic coefficients of the cable can be solved by dispersing standard k-ε turbulence equation using finite volume method,and they are related to attack angle and Re.Comparing the results of numerical calculation and associated experiment data show that the solving method of hydrodynamic coefficients is reliable.
出处
《舰船科学技术》
2011年第8期3-5,10,共4页
Ship Science and Technology
关键词
拖缆
水动力系数
有限体积法
towing cable
hydrodynamic coefficient
finite volume method
