Modeling Turbulence in Permeable Media: The Double-Decomposition Concept Revisited
In this article, a concept named double decomposition, which is used to model turbulent flows in porous media, is examined. This concept is based on the idea that in a turbulent flow through a porous matrix, local instantaneous variables can be averaged in time and space, simultaneously. Depending o...
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| 格式: | 文件 |
| 语言: | English |
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MDPI AG
2022-01-01
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| 丛编: | Physics |
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| 在线阅读: | https://www.mdpi.com/2624-8174/4/1/10 |
| _version_ | 1827626509349683200 |
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| author | Marcelo J. S. de Lemos |
| author_facet | Marcelo J. S. de Lemos |
| author_sort | Marcelo J. S. de Lemos |
| collection | DOAJ |
| description | In this article, a concept named double decomposition, which is used to model turbulent flows in porous media, is examined. This concept is based on the idea that in a turbulent flow through a porous matrix, local instantaneous variables can be averaged in time and space, simultaneously. Depending on how these operators are applied, averaged equations take different forms. In this article, instantaneous local equations are averaged using both operators and a different set of equations resulting from such operations are commented upon. Additional terms proposed for the averaged equations are discussed. |
| first_indexed | 2024-03-09T12:55:43Z |
| format | Article |
| id | doaj.art-3184eab0e9ff4f6cb11c8a0722983050 |
| institution | Directory Open Access Journal |
| issn | 2624-8174 |
| language | English |
| last_indexed | 2024-03-09T12:55:43Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Physics |
| spelling | doaj.art-3184eab0e9ff4f6cb11c8a07229830502023-11-30T21:59:50ZengMDPI AGPhysics2624-81742022-01-014112413110.3390/physics4010010Modeling Turbulence in Permeable Media: The Double-Decomposition Concept RevisitedMarcelo J. S. de Lemos0Departmento de Energia—IEME, Instituto Tecnológico de Aeronáutica—ITA, São José dos Campos 12228-900, BrazilIn this article, a concept named double decomposition, which is used to model turbulent flows in porous media, is examined. This concept is based on the idea that in a turbulent flow through a porous matrix, local instantaneous variables can be averaged in time and space, simultaneously. Depending on how these operators are applied, averaged equations take different forms. In this article, instantaneous local equations are averaged using both operators and a different set of equations resulting from such operations are commented upon. Additional terms proposed for the averaged equations are discussed.https://www.mdpi.com/2624-8174/4/1/10turbulent flowmodelingdouble decompositionpermeable structuresporous media |
| spellingShingle | Marcelo J. S. de Lemos Modeling Turbulence in Permeable Media: The Double-Decomposition Concept Revisited Physics turbulent flow modeling double decomposition permeable structures porous media |
| title | Modeling Turbulence in Permeable Media: The Double-Decomposition Concept Revisited |
| title_full | Modeling Turbulence in Permeable Media: The Double-Decomposition Concept Revisited |
| title_fullStr | Modeling Turbulence in Permeable Media: The Double-Decomposition Concept Revisited |
| title_full_unstemmed | Modeling Turbulence in Permeable Media: The Double-Decomposition Concept Revisited |
| title_short | Modeling Turbulence in Permeable Media: The Double-Decomposition Concept Revisited |
| title_sort | modeling turbulence in permeable media the double decomposition concept revisited |
| topic | turbulent flow modeling double decomposition permeable structures porous media |
| url | https://www.mdpi.com/2624-8174/4/1/10 |
| work_keys_str_mv | AT marcelojsdelemos modelingturbulenceinpermeablemediathedoubledecompositionconceptrevisited |