Improvement of Reynolds Experimental Equipment and Exploration of Teaching Innovation
Aiming at the deficiencies of unstable high-level water tank,inaccurate flow rate measurement,and limited measurement factors in the traditional Reynolds experimental device,this article proposes measures of improving the experimental device from three aspects.Firstly,the stability of the high-level water tank is improved by adding perforated partitions and three foot baffles;secondly,the influence of pipe diameter on Renolds number is intuitively observed by adding Reynolds tubes with different diameters;thirdly,a tracer insertion needle position control device is added to optimize the tracer needle insertion position,so the speed of the observation point can be closer to the average flow rate measured by the rotameter.In the process of carrying out this experiment,students can achieve the goal of exploring multi-dimensional influence on Renolds number by changing fluid viscosity and density through temperature regulation,and their understanding of pipeline velocity distribution and resistance loss can be deepened.
Improvement of Reynolds experimentTracerReynolds number
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