Having suitable scaling rules that produce dimensionally similar results is useful for flow model development for a variety of flow conditions. However, in multiphase flows such as gas-liquid flows, it is challenging to match all the dimensionless numbers. This study uses a computational fluid dynamics approach to identify key dimensionless numbers that can produce dimensionally similar results for a range of flow conditions in vertical Venturi of different dimensions. The performance of the scaling rules to predict multiphase flow measurements is evaluated against experimental measurements.

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