分层流体中运动物体与自由面相互作用的实验研究

The experimental research on the interaction of a moving body with a free surface in the stratified fluid

在静水槽中进行了分层流体中运动物体生成的内重力波与自由面相互作用的实验研究。分层介质为水盐水以及柴油盐水两种情形。研究的重点是物体在密度突跃层附近运动时导致的自由面的特定变形，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。

The experimental research of the interaction between a free surface an d the internal wave generated by a towed sphere in a stratified fluid is conduct ed in the water tank. The stratified fluids are composed by watersalt solution or salt waterdiesel oil. The emphasis of this research is on the typical defo rmation of the free surface as the small sphere is towed near this thermocline. The eff ects of sphere's position and its moving speed on the deformation is discussed. The thermocline's deformation is described. .