摘要
就截止阀低温空化问题展开研究,利用Fluent软件,以液氮为工质建立了低温截止阀的二维模型,并利用Schnerr-Sauer模型求解该空化模型,该计算模型由NASA水翼液氮空化实验验证。在此基础上研究了低温截止阀不同开度下液氮的空化特性,并进一步分析了不同位置处的平均压力和最大压力幅值,从而揭示了阀门系统易受损伤的部位。对低温截止阀内液氮低温空化现象的预测有助于低温流体输运系统的设计和操作。
A two-dimensional model of the cryogenic globe valve with liquid nitrogen(LN_(2))as working fluid was established with Fluent and the Schnerr-Sauer model was adopted to solve the cavitation model.The numerical model was verified and the cavitation characteristics of LN2 in cryogenic globe valve were investigated.Average pressure and maximum pressure amplitude on different positions of the valve wall were further studied to investigate the cavitation impact on the valve.This study may help the valve design and operation of cryogenic transportation system.
作者
周霞
植晓琴
高旭
刘岩云
陈虹
王凯
邱利民
Zhou Xia;Zhi Xiaoqin;Gao Xu;Liu Yanyun;Chen Hong;Wang Kai;Qiu Limin(Institute of Refrigeration and Cryogenics,Zhejiang University,Hangzhou 310027,China;Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province,Hangzhou 310027,China;State Key Laboratory of Technologies in Space Cryogenic Propellants,Beijing 100028,China)
出处
《低温工程》
CAS
CSCD
北大核心
2021年第5期1-7,共7页
Cryogenics
基金
国家自然科学基金重点项目(No.51636007)
航天低温推进剂技术国家重点实验室开放课题(SKLTSCP1601)。
关键词
空化
低温流体
截止阀
计算流体力学
cavitation
cryogenic liquid
cryogenic globe valve
computational fluid dynamics
