On the Sensitivity of the Nonlinear Term in the Outflow Boundary Condition

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00357101" target="_blank" >RIV/68407700:21220/21:00357101 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.14311/AP.2021.61.0117" target="_blank" >https://doi.org/10.14311/AP.2021.61.0117</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/AP.2021.61.0117" target="_blank" >10.14311/AP.2021.61.0117</a>

Result language
angličtina
Original language name
On the Sensitivity of the Nonlinear Term in the Outflow Boundary Condition
Original language description
This paper studies the artificial outflow boundary condition for the Navier-Stokes system. This type of condition is widely used and it is therefore very important to study its influence on a numerical solution of the corresponding boundary-value problem. We particularly focus on the role of the coefficient in front of the nonlinear term in the boundary condition on the outflow. The influence of this term is examined numerically, comparing the obtained results in a close neighbourhood of the outflow. The numerical experiment is carried out for a fluid flow through the channel with so called sudden extension. Presented numerical results are obtained by means of the OpenFOAM toolbox. They confirm that the kinetic energy of the flow in the channel can be controlled by means of the proposed boundary condition.
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10101 - Pure mathematics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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