摘要
通过计算流体力学(CFD)的方法对50 mm口径的旋进旋涡流量计进行了数值仿真.分析了旋涡进动效应下流量计内部流场的演变情况,找出传感器最佳安装位置以减小外界振动与流体脉动噪声对旋进旋涡流量计造成的影响,并且在此基础上对旋进旋涡流量计进行改进——在旋进旋涡流量计前面加导流片.改进后的旋进旋涡流量计压力损失有了较大幅度的减少.
The CFD method was applied to simulate the flow field in a 50 mm-diameter swirlmeter. In order to find out the most optimized position for the sensors, thus to reduce the influence from the outside vibrations and the noise the turbulence induced, the evolvement of the flow structures in the swirlmeter was investigated. Moreover, an improved swirlmeter with inlet guide vanes can reduce a lot of pressure loss.
出处
《中国计量学院学报》
2008年第4期314-318,共5页
Journal of China Jiliang University
关键词
旋进旋涡流量计
数值仿真
旋涡进动效应
swirlmeter
numerical simulation
turlence vortex precession effect
