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Title: Evaluating Turbulence Profile Effect On Ultrasonic Meter Performance
Author: John Geerligs Robert Mcbrien Jeff Crowe
Source: American Gas Association 2013
Year Published: 2013
Abstract: The effect of turbulence on the flow rate measurement accuracy of a 200 mm (8 inch) multipath ultrasonic meter (USM) was determined by testing the USM performance with varying levels of flow turbulence. The meter, a Daniel SeniorSonic, was tested as received, that is, with no calibration adjustment, along a straight section of pipe, 105 pipe diameters (D) in length, upstream of the meter inlet. Exposure to different turbulence profiles was achieved by placing a 19-tube bundle (19-TB) upstream of the meter inlet at distances of 2, 6, 11 and 26 D. Tests were done in high-pressure (4500-5000 kPaa) natural gas flows with pipe Reynolds numbers (Re) ranging from 1x106 to 14x106

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