一种用仿真设计的可变喷嘴换向器研究  

Research on a variable nozzle design and simulation of the commutator

作　　者：王海[1] 汪斌[1] 沈晓曼 杨照[1] 黄奕欣 

机构地区：[1]中国测试技术研究院,四川成都610021

出　　处：《中国测试》2016年第12期91-94,共4页China Measurement & Test

摘　　要：设计建造质量法液体流量标准装置的过程中,需要根据衡器的量程确定不同换向器组的几何尺寸和规格。传统的制造方案一般采用历史数据,很少有文献从原理上对换向器及其配套喷嘴进行理论设计。该文首先通过计算确定流量喷嘴的量程和入口管道口径,仿真计算得到适宜的喷嘴尺寸;配置合理的分水器和驱动装置;针对性地改善喷嘴出口流速的均匀性,减少流量标准装置的误差来源。最后通过仿真计算结果和实验测试数据进行比对,取得较好的一致性,证明通过仿真指导设计制作流量换向器是科学合理的。In the process of designing and construction for standard liquid flow device based on quality method, geometric dimensions and specifications of different diverter groups were determined according to the weighing range. The traditional manufacturing method usually uses historical data, rare literature designs diverter and its nozzle based on the principle of diverter. This paper tried to calculate the range of flow nozzle and the diameter of inlet pipe, get the appropriate nozzle size by simulation calculation, allocate water separator and driving device reasonably, improve the nozzle exit velocity uniformity, reduce the error sources of standard flow device. By comparing the simulation results with the experimental data, the results obtained have good agreement. The results show that the design of flow diverter by the guide of simulation is scientific and reasonable.

关 键 词：液体流量标准装置 出口开度可变 流量喷嘴 流场仿真 

分 类 号：TP368.5[自动化与计算机技术—计算机系统结构]