Abstract:
The fluid transfer unit is a modular course for studying the basic theory of fluid flow and fluid conveying machinery, and is a core course offered by the undergraduate chemical technology major of higher vocational education.In order to improve the quality of the practical teaching of this course,this paper applies numerical simulation software to the practical teaching of venturi tube.Firstly,by referring to the national standard of flow measurement throttle device,the venturi tube is parametrically designed,and the internal flow field is analyzed and solved by numerical simulation software to verify the effectiveness of the numerical model.Then, the trend of pressure drop and velocity of venturi tube structure,inlet velocity and medium change is discussed by numerical simulation software,and the group is organized to discuss and analyze the numerical experimental results,which makes up for the shortcomings of the existing differential pressure flowmeter training,which is conducive to the promotion and use of practical training and teaching.
