Experiment system for measuring drag coefficient

Abstract

The invention discloses an experiment system for measuring drag coefficient, and belongs to the field of system design of basic scientific research experiments. The experiment system for measuring drag coefficient comprises an experiment section, constant temperature heaters, a liquid drop water bath heating section, a drop generator and an image information acquiring module. The experiment section and the water bath heating section are rectangular water tanks made of organic glass, and drain valve is provided on the bottom. A cylinder with the same height as water tanks is provided on the center of the water bath heating section. An injection needle is inserted into the bottom of the experiment section and connected with a syringe through a hose. The hose is wound on the center cylinder of the liquid drop water bath heating section. Constant temperature heaters and thermometers are provided on the bottom portions of the two sides of the experiment section and the liquid drop water bath heating section. LED flat lamps, a high speed photographic instrument and a computer are provided at the two sides of the experiment section. According to the experiment system for measuring drag coefficient, the deformation of the drop generated in the acceleration / uniform speed process can be observed and shot, and the drag coefficient is obtained to study the characteristics of drop in acceleration / uniform speed process; the relationship between the viscosity and the drag coefficient of deformation is observed by controlling the temperature to change the viscosity of the drop.

Description

technical field [0001] The invention belongs to the field of system design of basic scientific research experiments, and in particular relates to an experimental system for measuring drag coefficient. Background technique [0002] The steam generator is the key equipment in the nuclear power plant. Its main function is to convert the energy generated by nuclear fission into the mechanical energy of steam, and the corrugated plate dryer dries the steam generated by the steam generator to prevent damage to the turbine blades. Corrugated plate dryers have been widely used in the field of steam-water separation in pressurized water reactor nuclear power plants. The trajectory of droplets in the corrugated plate seriously affects the separation efficiency of the corrugated plate. It is not clear yet, and due to the deformation of the droplet, its drag coefficient is difficult to determine. Therefore, it is currently necessary to design a visualization experiment system for the dr...

AI Technical Summary

Problems solved by technology

Corrugated plate dryers have been widely used in the field of steam-water separation in pressurized water reactor nuclear power plants. The trajectory of droplets in the corrugated plate seriously affects the separation efficiency of the corrugated plate. It is still not clear, and due to the deformation of the droplet, its drag coefficient is difficult to determine, so it is necessary to design a droplet drag coefficient and deformation experiment visualization experiment system

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