经典流体力学以大尺度宏观测量为依据,对线度只有μm或亚μm的流体,经典流体力学是否仍然适用?适用范围有多大?一直是不易回答的问题。核孔膜的出现,使这一问题的回答成为可能。核孔膜孔形为均匀直筒状,孔径一致,孔长相等。孔径范围在几nm至几十μm之间可控,是对微观流体力学进行理论和实验研究的理想工具。 Classical hydrodynamics is based on large-scale macroscopic measurements. Is classical fluid mechanics still applicable to fluids with only a μm or sub-μm linear resolution? What is the range of applicability? It has always been a difficult question to answer. The appearance of a nuclear pore membrane makes it possible to answer this question. Nuclear pore pore shape is uniform straight cylinder, the same aperture, hole length equal. Aperture range of a few nm to tens of μm controllable, is the ideal for theoretical and experimental study of micro-hydrodynamics tools.