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弹性水翼流固耦合特性数值模拟研究

发表时间:2015-08-15  浏览量:1492  下载量:650
全部作者: 高远,吴钦,黄彪,王国玉
作者单位: 北京理工大学机械与车辆学院
摘 要: 对弹性水翼在流固耦合作用下的水弹性响应进行数值计算,采用流固耦合方法研究了弹性水翼的水动力载荷特性及变形特点。结果表明:数值计算结果与试验数据吻合较好;与刚性水翼相比,弹性水翼在相同攻角下的升力系数较大,前缘吸力面最大负压的绝对值由固定端向自由端增大。弹性水翼在流固耦合作用下发生变形,局部攻角由固定端向自由端增大是造成弹性水翼升力系数增大的原因。
关 键 词: 流体力学;弹性水翼;流固耦合;水动力载荷
Title: Numerical investigation of fluid-structure interation characteristics of flexible hydrofoils
Author: GAO Yuan, WU Qin, HUANG Biao, WANG Guoyu
Organization: School of Mechanical Engineering, Beijing Institute of Technology
Abstract: Concerned with the numerical investigation of the hydroelastic behavior of a flexible hydrofoil, the characteristics of the hydrodynamic loads and deformations are analyzed using the fluid-structure interaction method. The results also show that there is a good agreement between the numerical and experimental results. The lift coefficient of flexible hydrofoil is higher than that of the rigid one at the same angle of attack, and the absolute value of the maximum negative pressure on the suction side of the foil increases from the fixed end to the free end, which is due to the effect of fluid-structure interaction caused by the deformation. The local angle of attack from the fixed end to the free end increases, which is responsible for the increase of the lift coefficient.
Key words: fluid mechanics; flexible hydrofoil; fluid-structure interaction; hydrodynamic load
发表期数: 2015年8月第15期
引用格式: 高远,吴钦,黄彪,等. 弹性水翼流固耦合特性数值模拟研究[J]. 中国科技论文在线精品论文,2015,8(15):1633-1639.
 
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