Název: Geometrically realistic macro-scale model for multi-scalesimulations of catalytic filters for automotive gasaftertreatment
Autoři: Hlavatý, Tomáš ; Isoz, Martin ; Plachá, M. ; Šourek, M. ; Kočí, P.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Topical Problems of Fluid Mechanics 2020, Praha (CZ), 20200219
Rok: 2020
Jazyk: eng
Abstrakt: This paper is part of a research focused on simulating (i) the catalytic conversion of environment endangering gases, and (ii) trapping of the particulate matter in automotive exhaust gas aftertreatment. Historically, the catalytic conversion and the filtration of soot particles were performed in independent devices. However, recent trend is to combine the catalytic converter and soot filter into a single device, the catalytic filter. Compared to the standard two-device system, the catalytic filter is more compact and has lower heat losses. Nevertheless, it is highly sensitive to the catalyst distribution. This study extends our recently developed methodology for pore-scale simulations of flow, diffusion and reaction in the coated catalytic filters. The extension consists of enabling data transfer from macro- to pore-scale models by preparing geometrically realistic macro-scale CFD simulations. The simulation geometry is based on XRT scans of real-life catalytic filters. The flow data from the newly developed macro-scale model are mapped as boundary conditions into the pore-scale simulations and used to improve the estimates of the catalytic filter filtration efficiency.
Klíčová slova: catalytic filter; CFD; OpenFOAM
Číslo projektu: EF15_003/0000493
Poskytovatel projektu: GA MŠk
Zdrojový dokument: Topical Problems of Fluid Mechanics 2020, ISBN 978-80-87012-74-1, 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/2020/11-TPFM2020.pdf
Původní záznam: http://hdl.handle.net/11104/0318589

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-438284


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