Numerical simulation and analysis of excited rotary valve flow field with computational fluid dynamics

• Main Authors: Song Yu-ning, Zhao Guochao, Fu Peng
• Format: Article
• Language: English
• Published: Wiley 2020-10-01
• Series: The Journal of Engineering
• Subjects: valves; numerical analysis; computational fluid dynamics; opening degree; negative pressure; excited rotary valve flow field; fluid flow characteristics; hydraulic excited rotary valve; fluent fluid analysis software; different opening degrees
• Online Access: https://digital-library.theiet.org/content/journals/10.1049/joe.2020.0070

In order to study the fluid flow characteristics of the key components in the hydraulic excited rotary valve, then determine the area of vortex and negative pressure to find the weak link in the structure and analyse the performance of the valve. Simulate the flow field in the rotary valve by Fluent fluid analysis software and set different opening degrees under the same boundary conditions. Studies showed that the velocity at the exit junction of the fluid in the rotary valve and the vortex degree of pressure are large at the oil groove. When the opening degree is small, the negative pressure is large, the vortex is obvious. When the opening becomes large, the negative pressure and vortex are improved. The research provides a theoretical basis for the optimisation and improvement of the rotary valve.