By turning a rod covered with a viscous liquid(e.g..honey),some of the liquid can be retained on the rod without dripping.For this phenomenon,most previous theories are based on the N-S equations,which can-not clearly explain the physical mechanisms of the phenomenon.In this paper,a simple theoretical model of the phenomenon dominated by viscous force,centrifugal force,gravity and surface tension is obtained through a simple force analysis and a method similar to dimensional analysis,which avoids the complex and lengthy solution of the hydrodynamic equations;Experimentally,self-consistent experimental data are obtained through the construction of a stable device and reasonable control of variables.The experimental results are in good contrast with the theory,and the physical mechanisms and key factors of the non-dripping of viscous liquid on the rotating rod are explained intuitively.The theoretical analysis is in good agreement with the experimental results,and the physical nature and key factors for the non-dripping of viscous liquids on rotating rods are explained intuitively.
NETL
NSTL
万方数据
维普
