Research on the Law of Hot-end Tube-type Changes on the Energy Separation Effect of Maxwell Tube
(1.School of Mechanical and Electronic Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China; 2.College of Intelligent Manufacturing, Putian University, Putian 351100, China; 3.College of Artificial Intelligence, Putian University, Putian 351100, China)
Abstract
Using ideal air as the working fluid, this study employs Computational Fluid Dynamics (CFD) combined with thermodynamic analysis to numerically simulate three types of hot-end structures including straight tubes, expansion tubes, and secondary expansion tubes. Results indicate that the geometric configuration of the hot end significantly influences the energy separation performance of Maxwell-type tubes. The expansion tube exhibits the most effective cold-hot separation, followed by the secondary expansion tube, with the straight tube exhibiting the weakest performance. Axial velocity and total pressure distributions follow the same pattern, with the expansion tube showing the greatest variation, followed by the straight tube and secondary expansion tube in decreasing order. This study reveals the role of hot-end structures in flow characteristics and energy separation mechanisms, providing a theoretical basis for optimizing the design of Maxwell-type tubes.
Keywords
vortex tube; Maxwell-type tube; energy separation; numerical simulation
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Funding
National Natural Science Foundation of China Project (52066006)
About the authors
Hu Junjie (August 2001-), male, Han ethnicity, born in Jingdezhen, Jiangxi, is currently pursuing a master's degree in Maxwell structural tubes.