Levitation and Non-Contacting Control of Liquid Flow Utilizing Mose's Effect

水虽然很弱，但有反磁性。然后，如果磁场被施加到水的表面，由于排斥磁力，它被推到一边并形成垂直壁。这一现象被称为摩西效应，以旧约中的先知摩西命名。利用这种效应，抗磁性材料可以悬浮并固定在指定位置，而无需直接接触。如果磁极在流动方向上较长，则可以形成虚拟流动通道，并且流体可以流过虚拟通道。这就产生了无污染的材料加工新技术和将药物集中到病变部位而避免副作用的新剂量方法。基本原理取决于悬浮流体的磁化强度比周围流体的磁化强度弱，然后，即使使用常规弱磁体，也可以使用磁流体作为周围流体来容易地完成模拟。研究中，将一对长磁极面对面放置形成虚拟通道，并对通道内流体柱的稳定性、诱导振荡模式、波的传播和表面不稳定性进行了实验和分析研究。

Water is diamagnetic though very weak. Then, if the magnetic field is applied to the surface of the water, it is pushed aside and forms the vertical walls due to the repulsive magnetic force. This phenomenon is named Moses' effect after the prophet Moses in the Old Testament. Utilizing this effect, the diamagnetic materials can be levitated and fixed in the specified position without direct contact. If the magnetic poles are long in the flow direction, the virtual flow channel can be formed and the fluid can flow through the virtual channel. This leads to the new technology of material processing without contamination and the new dosage method to concentrate the medicine only to the diseased part avoiding the side effects.The fundamental principle depends on the weaker magnetization of the levitated fluid than that of the surrounding fluid, then the simulation even with the conventional weak magnets can be easily accomplished using the magnetic fluid as the surrounding fluid.In the present research, a pair of long magnetic poles are set face to face each other to form the virtual channel, and the stability of the fluid column inside of the channel, the modes of the induced oscillation, propagation of the waves and instability of the surface are experimentally and analytically investigated.