Turbulent flow in small-diameter ultrasonic flow meters: A numerical and experimental study

Small-diameter ultrasonic flow meters present an interesting industrial internal-flow problem due to their unique geometry and complex interaction with fluid flow. In order efficiently evaluate optimise these meters, physics must be accurately understood predicted. this study, computational dynamics is used predict the turbulent inside a residential meter intrusive two-stand configuration. Reynolds-averaged Navier–Stokes (RANS), k−ɛ k−ωSST turbulence models are evaluated in wall-modelled wall-resolved grid. The simulation results compared against laser Doppler velocimetry, pressure drop, vortices visualisation experiments both qualitative quantitative manners. Numerical qualitatively agree experimental data although some discrepancies predicted by model. Overall, that best structures, axial velocity, drop achieved RANS While minor differences k−ωSST, it concluded approach good candidate perform time-efficient studies reduced cost.