对小孔泄漏振荡演示实验的研究

A study on the demonstration experiment of liquid leaking back and forth through a small hole

对小孔泄漏演示实验给出了物理解释,分析了引起小孔泄漏振荡的原因:液体系统由于浓度差产生的自由能的降低是不同浓度液体之间相互渗透的动力,由于液体黏性的存在使得液体通过小孔的渗流只能单向发生,以及在小孔附近两侧的压力差控制着渗流的流向.

A new demonstration experiment,liquid leaking back and forth through a small hole,is getting more interesting. It is shown that the reducing of the free energy of the liquid system makes the different parts of an anisotropic liquid osmosize each other,the viscosity makes the liquid flow in a small hole only in one direction,and the pressure difference of the liqors on the two sides of the hole controls the direction of the osmosis flow.