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The use of an ultrasonic Doppler velocimeter in turbulent pipe flow

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Abstract

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.

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Authors and Affiliations

  1. Dipartimento di Difesa del Suolo, Università della Calabria, , 87036, Rende (Cosenza), Italy

    G. Alfonsi

  2. ENEL Polo Idraulico Strutturale, Via G. Pozzobonelli 6, 20162, Milano, Italy

    S. Brambilla

  3. Dipartimento di Ingegneria Idraulica, Politecnico di Milano, Piazza L. da Vinci 32, 20133, Milano, Italy

    D. Chiuch

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  1. G. Alfonsi
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  2. S. Brambilla
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  3. D. Chiuch
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Alfonsi, G., Brambilla, S. & Chiuch, D. The use of an ultrasonic Doppler velocimeter in turbulent pipe flow. Exp Fluids 35, 553–559 (2003). https://doi.org/10.1007/s00348-003-0672-3

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  • DOI: https://doi.org/10.1007/s00348-003-0672-3

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