湿蒸汽流量测量虚高系数影响数值研究

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Numerical Study on Over Reading Coefficient in Wet Steam Flow Measurement

CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear power institute of China, Chengdu, 610041, China

摘要: 采用计算流体动力学(CFD)两相流模拟软件对文丘里流量计内湿蒸汽的流动过程进行研究,分析压力、流量、喉径比等参数对虚高系数的影响。结果表明:流量对虚高系数的影响较小;文丘里流量计喉径比对虚高系数的影响会随着压力升高而变大。
- 湿蒸汽 /
- 文丘里流量计 /
- 虚高模型 /
- CFD数值模拟
Abstract: This paper investigated the flow process of wet steam in Venturi under interested conditions with CFD simulation software.The effect of pressure,mass flow rate,throat radius on over reading factor was analyzed.This paper aims to improve the wet steam over reading model and the prediction accuracy in wet steam.The results prove that the mass flow has a small effect on over reading coefficient,while the effect that throat radius has on over reading coefficient increases as the pressure rises.
- Wet steam /
- Venturi flowmeter /
- Over reading model /
- CFD simulation