Driving mechanism of the Deep Antarctic Circumpolar Current by the meso-scale eddies..

众所周知，南极绕极洋流正从南极周围向东流向相当深的地方。虽然这一起源被模糊地认为是在许多情况下通常吹到海顶的风的作用，但很难考虑风应力不能影响直接深度，并通过Ekman辐合和排放贯穿密度分层，并对深度产生动态影响的机制。然后，本研究的目的是确定是否使用旋转水池进行室内实验，给出各向同性湍流作为初始湍流，最终在湍流的非线性加速度极周围形成东向流，实验水箱以圆柱体的形式每分钟旋转100次，改变同心圆形状的水深，产生Beta效应。初始湍流发生设备重复试验…更多的L和错误，最后，拔出了插入水下早期阶段的棍子，并将其实施到产生初始湍流。虽然该方法一开始考虑了另一种方法，以防止拉出的棒束干扰相机的视场，但这种方法最确定的是湍流的产生，利用离心力将拉出的棒一分为二，并发展了确保相机视场的方法，并使其采用了这种方法。流动可视化采用薄片形状的光线，使发光二极管排列整齐，使聚苯乙烯小珠分布在水下，在不受风对表面张力或水面影响的情况下，成功地对储罐中心部分的流动进行了可视化。虽然与Yamada等人的数值计算相比，在以极同心圆[在数值计算中]为中心的类海面上作为西Nagare的概率较高，且极点移动时，它已经变成了东移，但在实验中，它总是变成一种向东的流动。通过数值计算，认为边界条件是滑移条件，这是因为在同心圆海面上没有给出边界上的运动量。较少

It is known that the Antarctic Circumpolar Current is flowing the surroundings of Antarctica for the east to the depths considerably. Although this origin is vaguely considered to be what is depended on the wind which generally blows a sea top in many cases, it is hard to consider the mechanism which stress of a wind cannot affect the direct depths, and runs through density stratification through Ekman convergence and emission, and does that influence to the depths dynamically. Then, it is the purpose of this research to confirm whether an indoor experiment is conducted using a rotation tank, a turbulent flow isotropic as initial turbulence is given, and, finally the flow facing the east is formed in the surroundings of a pole of nonlinear acceleration of turbulence.The experiment tank was making it rotate per minute 100 times with a cylinder form, changed depth of water in the shape of a concentric circle, and produced beta effect. Initial turbulence generating equipment repeated tria … More l and error many times, finally, is drawing out the stick inserted underwater in early stages, and carried out it to generating initial turbulence. Although this method considered another method at the beginning in order that the bunch of the drawn-out stick might interrupt the field of view of a camera, this method is turbulence's being generated most certainly and dividing the drawn-out stick by centrifugal force into two, and it is having developed the method of securing the field of view of a camera, and was made to adopt this method. Visualization of a flow hit the light of the shape of a sheet which put in order and made the light emitting diode to the styrene bead distributed underwater, and succeeded in visualizing the flow in the tank central part without the influence of the wind on surface tension or the water surface.Although the initial turbulence of two or more sizes was given and being repeatedly experimented in the experiment, the quite strong flow facing the east was obtained altogether. Although it had resulted in becoming for the east when the probability which serves as west Nagare in the centering on pole concentric circle [this/in numerical computation]-like sea in comparison with the numerical computation of Yamada and others was high and the pole was shifted, in an experiment, it always becomes a flow facing the east. By numerical computation, boundary conditions are slip conditions and this is considered to be because for quantity of motion not to be given on the boundary in the concentric circle-like sea. Less