An effect of entrance length on development of velocity profile in channel of millimeter dimensions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F16%3A00000851" target="_blank" >RIV/46747885:24620/16:00000851 - isvavai.cz</a>
Result on the web
<a href="http://aip.scitation.org/doi/abs/10.1063/1.4953712" target="_blank" >http://aip.scitation.org/doi/abs/10.1063/1.4953712</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4953712" target="_blank" >10.1063/1.4953712</a>

Result language
angličtina
Original language name
An effect of entrance length on development of velocity profile in channel of millimeter dimensions
Original language description
Here we used modified PIV technique completed with long distance microscope probe for experimental investigation of the flow velocity profile in a rectangular duct. We came from the analytical and numerical prediction of the entrance length for fully developed velocity profile. The results of measurement completed knowledge about the flow stability and velocity profile shape in the channel of 0.00375 hydraulic diameters. There was marked a range of entrance length constant for the transient flow area. The presents of the fluctuating velocities in the transition flow is explained with POD snapshot and modes projection. The minimal entrance length for the laminar, transition, and turbulent flow is set.
Czech name
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Czech description
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Project
<a href="/en/project/LO1201" target="_blank" >LO1201: DEVELOPMENT OF THE INSTITUTE FOR NANOMATERIALS, ADVANCED TECHNOLOGIES AND INNOVATION</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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