贮箱增压孔板流量系数仿真研究  

Simulation Study on Flow Coefficient of Orifice Used in Pressurization-tank

作　　者：王慧龙[1] 张宇 孙凤举[1] 焦鑫鑫 刘鑫[1] WANG Hui-long;ZHANG Yu;SUN Feng-ju;JIAO Xin-xin;LIU Xin(Beijing Aerospace Institute for Metrology and Measurement Technology,Beijing 100076,China;Beijing Institute of Astronautical Systems Engineering,Beijing 100076,China)

机构地区：[1]北京航天计量测试技术研究所,北京100076 [2]北京宇航系统工程研究所,北京100076

出　　处：《宇航计测技术》2019年第6期26-30,共5页Journal of Astronautic Metrology and Measurement

摘　　要：数值模拟方法是研究流体流场特性的有效手段之一,采用流体仿真手段,根据仿真实验数据,找出适合计算孔板流量系数的湍流模型,通过仿真等效直径、组合工况下同一孔板的流场分布,分析其实验数据并拟合其流量系数变化曲线,对实际流量试验有一定的参考价值。Numerical simulation simulation method is one of the effective methods of studying the characteristics of fluid flow field,the means of fluid simulation is used,according to the simulation data,the suitable turbulence model is found out to calculate the orifice discharge coefficient,through the simulation of equivalent diameter,combined working conditions is the same orifice flow field distribution,the experimental data is analysed and the curves of flow coefficient are fitted,it has the certain reference value for the actual flow test.

关 键 词：数值模拟 流场仿真 流量系数 

分 类 号：TB937[一般工业技术—计量学]