The present work is concerned with a numerical study on the performance of industrial flow conditioners to produce the fully developed flow condition required by international standards for accurate flow metering purposes. The Etoile flow straightener was tested under severe distorted flow generated by a double 90 degrees bend elbows in perpendicular planes, at different Reynolds numbers ranging from 103 to 106. Different geometrical settings for the Etoile were tested. The flow field has been simulated using the COMSOL CFD code. The performance of the flow straightener to produce the fully developed flow condition under different geometrical and dynamic conditions was investigated and discussed.
computational fluid dynamics, flow conditioner, pipe flow, fully developed flow, flow rate measurements, international standards, industry 4.0
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