Flow Investigation in a Microchannel with a Flow Disturbing Rib

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F14%3A00430957" target="_blank" >RIV/67985858:_____/14:00430957 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.ces.2014.07.055" target="_blank" >http://dx.doi.org/10.1016/j.ces.2014.07.055</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ces.2014.07.055" target="_blank" >10.1016/j.ces.2014.07.055</a>

Result language
angličtina
Original language name
Flow Investigation in a Microchannel with a Flow Disturbing Rib
Original language description
The purpose of this work is to study the flow around a flow-disturbing rib in a rectangular microchannel and to investigate the effect of key design parameters (i.e. the rib height and length as well as the Reynolds number) on the size of the reattachment length of the recirculation zones and the wall shear stress profiles in the vicinity of the rib. Initially the wall shear rate along the channel as well as the velocity field were experimentally determined using the electrodiffusion technique and the ?-PIV method, respectively. The experimental results are then used for validating a CFD code. Finally, the CFD code was employed for investigating the effect of the design parameters on the flow characteristics by performing a parametric study based on the Design of Experiments (DOE) and the Response Surface Methodology (RSM). It was found that the recirculation length in the laminar regime is affected mainly by the Re value and the rib height, whereas in the turbulent regime it is affect
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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