Evaluation with CFD techniques of a Wedge Flowmeter
Keywords:
CFD, flowmeters, wedge flowmeter, fluids mechanicsAbstract
The work focusses the modelling with Computational Fluid Mechanics techniques of the wedge flowmeter standardized by ISO 5167-6 of 2022. The good results obtained in the calibration, with values below 2,7% for the relationship between the pressure difference and the flow rate and less than 1,9% for the permanent pressure losses in the duct, allow for a standard model, in terms of geometry, meshing and configuration of the model's boundary conditions that will allow new design alternatives to be undertaken for this and other flowmeters for forced ducts, with principles similar to those of the evaluated element. The modelling of the new alternatives in the design of the flowmeter has made it possible to solve the major problem of the original flowmeter, which is the high permanent pressure losses that occur in the duct. The new asymmetric wedge designs have made it possible to reduce losses by more than 80% compared to the original wedge.
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