摘要
本文运用粘性流体力学原理对现有涡轮流量计理论模型进行了改进。根据新模型计算的流量计特性曲线与变粘度实验结果更为吻合,从而为工业生产中涡轮流量计测量结果的粘度修正问题提供了实用解决的方法。利用本文的研究结果还可预测仪表几何参数与来流速度分布对涡轮流量计性能的影响,作为改进仪表设计的理论依据。
On the basis of viscous fluid mechanics this paper presents an improved theoretical model of turbine flowmeter performance. The calibration curves calculated by the present model show a better agreement with the results measured in variable-viscosity experiments than the existing ones, thus providing the flowrate measurements by use of turbine meters in industries with a practical approach of viscosity-correction. The new model can also be used to predict the effects of inlet velocity profile and meter geometry on the meter's performance, and thereby improves the design of turbine flowmeters.
出处
《应用力学学报》
CAS
CSCD
北大核心
1991年第2期89-98,152,共10页
Chinese Journal of Applied Mechanics
关键词
流体粘度
涡轮流量计
粘度效应
flow measurement, turbine flowmeter, viscosity effect.
