摘要
采用ＲＡＮＳ方程为基本方程，应用二层ｋ－ε湍流模型封闭ＲＡＮＳ方程，采用有限体积法离散方程，对小展弦比舵翼的三维绕流场进行了数值模拟计算．不同于通常的网格划分，采用了贴体坐标与空度法相结合的方法对舵翼的几何形状及其对流场的影响进行描述．计算结果与实验结果进行了比较，结果表明，本文所采用的方法，可以对小展弦比舵翼三维流动的流体动力性能进行正确地预报，对其绕流场亦能给出合理的描述．
The three dimensional flow field of a small aspect ratio rudder is numerically simulated by using RANS equation,two layer k ε turbulent model and finite volume method.Along with body fitted coordinate,the porosity method is used to describe the three dimensional geometrical shape of the rudder,which is different from general grid making method.The numerical results have been compared with the experimental ones.A good agreement between the two kinds of results is reached.
出处
《武汉交通科技大学学报》
1999年第2期119-122,共4页
Journal of Wuhan University of Technology(Transportation Science & Engineering)
基金
国家自然科学基金
湖北省自然科学基金
关键词
舵翼
三维流动
RNAS方程
数值模拟
船舶
rudder wing
three dimensional flow field
RANS equation
numerical simulation
