Fluid Mechanics of Flow Metering

Flow metersmeasure the volumetric flow rate in a pipeline. Most metersare based on deriving a signal from the fluid flow and calibrating the signal against the volumetric flow rate. The calibration is done in fully-developed flow, and the same state of flow must exist at the meter's position when it is in practical use.

Because the field of flow metering has been neglected by fluid mechanicists for a long time, this book addresses two major fluid mechanical problemsin flow metering: the analysis of signal generation in turbulent pipe flow, which explains the function of the meter beyond a simple calibration, and the possible use of a meter in non-developed flows.

These problems are investigated with reference to,and examplesfrom, a variety of meters, e.g. ultrasound cross-correlation meters, vortex meters, and turbine meters. Studying these problems requires consideration of specific phenomena in turbulent non-developed pipe flow,as caused by installations, andfinding special solutionswith signal processing, both of whichare included in the book.