Thick liquid film instability model using CFD simulations

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU107841" target="_blank" >RIV/00216305:26210/13:PU107841 - isvavai.cz</a>
Result on the web
<a href="http://www.engineeringmechanics.cz/pdf/20_3_247.pdf" target="_blank" >http://www.engineeringmechanics.cz/pdf/20_3_247.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Thick liquid film instability model using CFD simulations
Original language description
The article presents a liquid film instability model designed using results of the set of CFD simulations. The governing equations of the model are derived using a linear equation of motion. The stability analysis is carried out by imposing a liquid surface disturbance which growth rate is investigated in dependence on the geometrical and physical configuration. The gas effect parameters, which are decisive variables in the model, are derived using results of the set of CFD simulations of turbulent flowin channel with wavy surface. The agreement between predicted and measured critical gas velocities and wavelengths in dependence on the liquid film thickness is very good.
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
BK - Liquid mechanics
OECD FORD branch
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Project
<a href="/en/project/GAP105%2F11%2F1339" target="_blank" >GAP105/11/1339: Porous particle-laden turbulent and laminar oscillating and steady flow in multiple branching</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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