液压与气动2025，Vol.49Issue(5)：47-55,9.DOI:10.11832/j.issn.1000-4858.2025.05.006
超高压大通径快开阀流量特性与气动力数值研究
Numerical Study on Flow Characteristic and Gas Flow Force of the Ultra-high Pressure Large-diameter Quick-opening Valve
摘要
Abstract
The ultra-high-pressure large-diameter quick-opening valve,is the core component of an ultra-high-pressure gas release device,its flow characteristics and gas flow force play a decisive role in the system performance.A mass flow model of the quick-opening valve is established,and numerical simulations are carried out based on CFD technology.The flow coefficients under different valve port openings and opening pressures are calculated,and the reason why the flow coefficient decreases as the valve port opening increases is analyzed,which is the formation of non-choked flow and the energy loss caused by eddies.Numerical simulations of the gas flow force acting on the quick-opening valve are conducted.The steady-state gas flow force acting on the conical surface and end face of the quick-opening valve core are quantitatively calculated,and it is analyzed that their values fully meet the requirements for quick-opening.A mathematical model of the gas flow force acting on the valve port is obtained through numerical fitting.The research results provide theoretical support for the optimal design and experimental verification of the quick-opening valve.关键词
快开阀/超高压/CFD/流场仿真/气动力Key words
quick-opening valve/ultra-high pressure/CFD/flow field analysis/gas flow force分类
机械工程引用本文复制引用
高隆隆,李永杰,王坚,韩书永,陈爱锋,李宝仁..超高压大通径快开阀流量特性与气动力数值研究[J].液压与气动,2025,49(5):47-55,9.基金项目
国家自然科学基金(51705164) （51705164）
