核安全2026，Vol.25Issue(2)：100-107,8.
湍流模型对截止阀内流场模拟影响研究
Influence of Turbulence Model on Flow Field Simulation within Globe Valve
刘宇生 1姚驰 2李聪新 3孙汝雷 2田瑞峰2
作者信息
- 1. 生态环境部核与辐射安全中心 生态环境部核与辐射安全审评模拟分析与验证重点实验室,北京 100082||哈尔滨工程大学 黑龙江省核动力装置性能与设备重点实验室,哈尔滨 150001
- 2. 哈尔滨工程大学 黑龙江省核动力装置性能与设备重点实验室,哈尔滨 150001
- 3. 生态环境部核与辐射安全中心 生态环境部核与辐射安全审评模拟分析与验证重点实验室,北京 100082
- 折叠
摘要
Abstract
Computational fluid Dynamics(CFD)is an important means to study the internal flow field of valves.The selection of turbulence models plays a decisive role in the accuracy of simulation results.This paper takes the globe valve with standard flange as research object,and conducts CFD simulations,using different turbulence models respectively,on flow field within valve.The simulated results are compared and analyzed from the aspects of velocity distribution,vortex structure characteristics and flow coefficient.The results show that there are some velocity zonesinflow field inside the valve,and the phenomena such as backflow,separationoccur in local positions with large velocity gradient,leading to the formation of fluid vortex structures.The accuracy of standard k-e model is not enough for flow field simulation in valve,while the SST k-ω model can take both the calculation efficiency and accuracy into account.The LES model is suitable for high-resolution identification of local flow field.关键词
阀门/数值计算/湍流模型/流场分析/涡结构Key words
valve/numerical simulation/turbulence model/flow field analysis/vortex structure分类
能源科技引用本文复制引用
刘宇生,姚驰,李聪新,孙汝雷,田瑞峰..湍流模型对截止阀内流场模拟影响研究[J].核安全,2026,25(2):100-107,8.
