Prediction of Viscous Coefficient of Venturi Meter under Non ISO Standard Conditions
International Journal of Engineering Research and
Venturi meters are commonly used in single and multiphase flows. The ISO standard (ISO 5167-4) provides meter discharge coefficients for Venturi meters in turbulent flows with Reynolds numbers (Re) between × to × , beta value ( ) between 0.4 to 0.75 and diameter (D) between 50mm to 250mm . In viscous fluids, Venturi are sometimes operated in laminar flows at Reynolds numbers below the range covered by the standards. The focus of the study was directed towards very small Reynolds numbers
... lds numbers commonly associated with pipeline transportation of viscous fluids. However high Reynolds number were also considered. The Computational Fluid Dynamics (CFD) program STAR CCM + was used to perform the research. Heavy oil and water were used separately as the two flowing fluids to obtain a wide range of Reynolds numbers with high precision. Multiple models were used with varying characteristics, such as pipe size and meter geometry, to obtain a better understanding of the C d vs. Re relationship.