The use of an ultrasonic Doppler velocimeter in turbulent pipe flow

The use of an ultrasonic Doppler velocimeter in turbulent pipe flow An ultrasonic Doppler velocimeter (UDV) is used for an experimental investigation of turbulent pipe flow at eight different Reynolds numbers (22,300–854,900). The UDV is a multipoint probe in the sense that it takes instantaneous measurements of fluid velocities at different locations simultaneously, with remarkable resolutions in space and time. The performances of the instrument with respect to the properties of the overlap layer of the turbulent flow field are investigated; the experimental results are compared with both already existing and more recently proposed scaling laws, and with other data of experimental nature. Experiments in Fluids Springer Journals

The use of an ultrasonic Doppler velocimeter in turbulent pipe flow

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