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Title: Beta Ratio, Axkymmetric Flow Distortion, And Swdxl Effects Upon Orifice Flow Meters
Author: G. L. Morrison, J. Hauglie, R. E. Deotte
Source: 1995 International Symposium on Fluid Flow Measurement
Year Published: 1995
Abstract: The objective of this study is to measure the response of the orifice meter to known upstream flow field disturbances generated by a concentric tube flow conditioner and a vane-type swirl generator. These disturbances are characterized by measuring the axial and tangential velocity profiles at the upstream flange tap with no orifice plate present. Two different flow rates are examined which correspond to Reynolds numbers of 91,100 and 120,000 in a 50.8 mm diameter pipe. Eight orifice plates with p4 ratios of 0.43, 0.45, 0.484, 0.55, 0.6, 0.65, 0.7 and 0.726 are studied at both flow rates.

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