Certificate of Registration Media number Эл #ФС77-53688 of 17 April 2013. ISSN 2308-6033. DOI 10.18698/2308-6033
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On the physical meaning of Reynolds number and other criteria of hydrodynamic similarity

Published: 05.03.2014

Authors: Makarov K.A.

Published in issue: #1(25)/2014

DOI: 10.18698/2308-6033-2014-1-1185

Category: Engineering Sciences | Chapter: Theoretical Mechanics. Design of mechanisms and machines

The paper considers physical interpretation of Reynolds number as the ratio of momentum flux of fluid enclosed in the volume of a unit length along the flux towards the viscous friction force per unit length along the flux. Within such interpretation there is no contradiction between the “energy" and “power" interpretations of the physical meaning of Reynolds number. The study justifies logical correctness of this interpretation and investigates the physical meaning of the other parameters of the hydrodynamic similarity.

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