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Original title:
Developing a coupled CFD solver for mass, momentum and heat transport in catalytic filters
Authors: Hlavatý, Tomáš ; Isoz, Martin ; Kočí, P.
Document type: Papers
Conference/Event: Topical problems of fluid mechanics 2022, Praha (CZ), 20220216
Year: 2022
Language: eng
Abstract: 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.
Keywords: catalytic filter; CFD; gasoline particulate filter (GPF); OpenFOAM
Project no.: EF15_003/0000493
Funding provider: GA MŠk
Host item entry: Topical Problems of Fluid Mechanics 2022, ISBN 978-80-87012-77-2, ISSN 2336-5781
Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2022/12-TPFM2022.pdf
Original record: https://hdl.handle.net/11104/0334782
Permalink: http://www.nusl.cz/ntk/nusl-510649
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Authors: Hlavatý, Tomáš ; Isoz, Martin ; Kočí, P.
Document type: Papers
Conference/Event: Topical problems of fluid mechanics 2022, Praha (CZ), 20220216
Year: 2022
Language: eng
Abstract: 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.
Keywords: catalytic filter; CFD; gasoline particulate filter (GPF); OpenFOAM
Project no.: EF15_003/0000493
Funding provider: GA MŠk
Host item entry: Topical Problems of Fluid Mechanics 2022, ISBN 978-80-87012-77-2, ISSN 2336-5781
Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2022/12-TPFM2022.pdf
Original record: https://hdl.handle.net/11104/0334782
Permalink: http://www.nusl.cz/ntk/nusl-510649
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Record created 2022-10-23, last modified 2023-12-06