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论文应用数值计算和实验两种方法研究了重力分层流体中运动物体与自由面的相互作用 .数值计算表明 ,用Rankine卵形体模拟潜艇 ,在通常潜艇运动的条件下 ,重力内波在水面上形成的尾迹较弱 ,但仍然具有可以识别的特征 .实验研究是在静水槽中进行的 ,分层介质为水 盐水以及柴油 盐水两种情形 .实验结果表明 ,物体在密度突跃层附近运动时导致自由面发生特定的变形 .论文还讨论了物体的位置和运动速度等因素对变形形态的影响 ,对密度突跃层本身的变形特征也作了描述
In this paper, two methods of numerical calculation and experiment are used to study the interaction between moving objects and free surface in gravity stratified fluid.Numerical calculations show that with Rankine oval body simulating submarines, under normal submarine motion, The wake formed is weak, but still has identifiable characteristics.Experimental research is carried out in a still tank, the stratified medium is water and brine and diesel salt water.The experimental results show that when the object moves in the vicinity of the density jump layer Resulting in a specific deformation of the free surface.The paper also discussed the impact of the position and velocity of the object on the deformation morphology, also described the deformation characteristics of the density sudden jump layer