Analysis of multi-working conditions and unsteady cavitation flow characteristics of single-seat control valve

Xudong Cao; Yi Hu; Zhihua Bai; Kang Huang

doi:10.1117/12.3026026

1 April 2024 Analysis of multi-working conditions and unsteady cavitation flow characteristics of single-seat control valve

Xudong Cao, Yi Hu, Zhihua Bai, Kang Huang

Author Affiliations +

Proceedings Volume 13082, Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023); 130823Y (2024) https://doi.org/10.1117/12.3026026
Event: 2023 4th International Conference on Mechanical Engineering, Intelligent Manufacturing and Automation Technology (MEMAT 2023), 2023, Guilin, China

Abstract

This study employed dynamic meshing technology to investigate the pressure field, velocity field and cavitation area in the single-seat control valve are studied. The results show that the cavitation degree on the surface of the valve core decreases with the decrease of the opening degree during the closing process of the valve. The degree of cavitation on the sealing surface of the valve seat increases as the opening decreases. During the dynamic reduction of the valve opening, the change trend of the vapor phase volume inside the valve body is consistent with the overall trend of the steady-state cavitation simulation. When the inlet pressure of the valve fluctuates, the cavitation phenomenon inside the valve body will change, and the overall trend will increase with the increase of the inlet pressure. When the inlet pressure of the regulating valve changes sinusoidally, the change trend of the cavitation degree in the valve is consistent with the change of the pressure inlet. When the inlet pressure changes linearly, the cavitation degree in the valve will fluctuate violently.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xudong Cao, Yi Hu, Zhihua Bai, and Kang Huang "Analysis of multi-working conditions and unsteady cavitation flow characteristics of single-seat control valve", Proc. SPIE 13082, Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023), 130823Y (1 April 2024); https://doi.org/10.1117/12.3026026

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