Název: Developing a coupled CFD solver for mass, momentum and heat transport in catalytic filters
Autoři: Hlavatý, Tomáš ; Isoz, Martin ; Kočí, P.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Topical problems of fluid mechanics 2022, Praha (CZ), 20220216
Rok: 2022
Jazyk: eng
Abstrakt: Using catalytic filters (CF) in automotive exhaust gas aftertreatment decreases the system heat losses and facilitates the CF regeneration. On the other hand, the CF overall performance is strongly dependent on the catalytic material distribution within it. In the present work, we aim to provide a computational framework to study the dependence of the CF characteristics, i.e. the pressure loss and the conversion of gaseous pollutants, on the catalyst distribution. Previously, we built an isothermal computational fluid dynamics (CFD) model of the flow and conversion of gaseous pollutants inside the CF. However, the reactions occurring inside the CF are exothermic and the assumption of constant temperature proved to be too restricting for real-life applications of the developed isothermal CFD model. Thus, in this work, we extend the framework by the enthalpy balance, which requires combining all the transport equations (mass, momentum and enthalpy) in a single solver. The new and more general solver provides results in good agreement with a well established (1+1)D channel model calibrated on experimental data. Furthermore, it allows studying more complex device-scale geometries of laboratory CF samples.
Klíčová slova: catalytic filter; CFD; gasoline particulate filter (GPF); OpenFOAM
Číslo projektu: EF15_003/0000493
Poskytovatel projektu: GA MŠk
Zdrojový dokument: Topical Problems of Fluid Mechanics 2022, ISBN 978-80-87012-77-2, ISSN 2336-5781

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na externích webových stránkách.
Externí umístění souboru: http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2022/12-TPFM2022.pdf
Původní záznam: https://hdl.handle.net/11104/0334782

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-510649


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference