Numerical Study on Over Reading Coefficient in Wet Steam Flow Measurement

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.