Influence of Multi-attitude Installation on Flow Performance of Water Meter
Flow characteristic is one of the main indicators to measure the performance of water meter.In order to explore the flow error of multi-jet water meter under different installation posture,the measurement error test was car-ried out by using the multi-attitude cold water meter verification device,and it was concluded that the flow perfor-mance of water meter was the worst when the water meter was installed in the vertical direction of flow direction from top to bottom.When the water meter is installed with the flow axis at an intermediate angle between the verti-cal and horizontal directions,the flow performance of the water meter is better than that of the water meter installed with the flow direction of the bottom-up vertical direction,and the performance is best when the water meter is in-stalled horizontally.Through the dynamic grid and 6DOF method of Fluent software,the flow field simulation of the water meter is performed,and the frictional resistance moment at three flow points under different installation posture in the test is estimated.The simulation error is obtained according to the frictional resistance moment,and the com-parison and analysis with the test error confirm that these frictional resistance moments are in line with expectations and reliable.
water metermultiple posturemeasurement errorfrictional resistance
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