Large eddy simulation of hydrodynamic and magnetohydrodynamic channel flows with a collocated finite-volume scheme and improved subgrid-scale modeling.
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| Title: | Large eddy simulation of hydrodynamic and magnetohydrodynamic channel flows with a collocated finite-volume scheme and improved subgrid-scale modeling. |
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| Authors: | Prinz, Sebastian1 sebastian.prinz@tu-ilmenau.de, Boeck, Thomas1, Schumacher, Jörg1 |
| Source: | European Journal of Mechanics B: Fluids. Nov2018, Vol. 72, p189-198. 10p. |
| Subjects: | Large eddy simulation models, Hydrodynamics, Magnetohydrodynamics, Finite volume method, Impact (Mechanics) |
| Abstract: | Abstract We study hydrodynamic and magnetohydrodynamic channel flows by means of large eddy simulations (LES) on the basis of a second-order finite-volume scheme in collocated variable arrangement with a focus on the impact of numerical diffusion on the subgrid-scale (SGS) modeling. It is found that a mixed SGS model, which is based on the velocity increment tensor and an eddy viscosity model, performs best and is able to capture near-wall regions of energy backscatter from small to larger scales. Thereby, it improves the accuracy of the LES computations significantly. Our studies suggest that the mixed SGS model is thus applicable for a wide class for shear flow problems in liquid metal flows where finite-volume methods with collocated grids are applied. [ABSTRACT FROM AUTHOR] |
| Copyright of European Journal of Mechanics B: Fluids is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 131816716 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Large eddy simulation of hydrodynamic and magnetohydrodynamic channel flows with a collocated finite-volume scheme and improved subgrid-scale modeling. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Prinz%2C+Sebastian%22">Prinz, Sebastian</searchLink><relatesTo>1</relatesTo><i> sebastian.prinz@tu-ilmenau.de</i><br /><searchLink fieldCode="AR" term="%22Boeck%2C+Thomas%22">Boeck, Thomas</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Schumacher%2C+Jörg%22">Schumacher, Jörg</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Journal+of+Mechanics+B%3A+Fluids%22">European Journal of Mechanics B: Fluids</searchLink>. Nov2018, Vol. 72, p189-198. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Large+eddy+simulation+models%22">Large eddy simulation models</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrodynamics%22">Hydrodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetohydrodynamics%22">Magnetohydrodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+volume+method%22">Finite volume method</searchLink><br /><searchLink fieldCode="DE" term="%22Impact+%28Mechanics%29%22">Impact (Mechanics)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract We study hydrodynamic and magnetohydrodynamic channel flows by means of large eddy simulations (LES) on the basis of a second-order finite-volume scheme in collocated variable arrangement with a focus on the impact of numerical diffusion on the subgrid-scale (SGS) modeling. It is found that a mixed SGS model, which is based on the velocity increment tensor and an eddy viscosity model, performs best and is able to capture near-wall regions of energy backscatter from small to larger scales. Thereby, it improves the accuracy of the LES computations significantly. Our studies suggest that the mixed SGS model is thus applicable for a wide class for shear flow problems in liquid metal flows where finite-volume methods with collocated grids are applied. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Journal of Mechanics B: Fluids is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.euromechflu.2018.05.008 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 189 Subjects: – SubjectFull: Large eddy simulation models Type: general – SubjectFull: Hydrodynamics Type: general – SubjectFull: Magnetohydrodynamics Type: general – SubjectFull: Finite volume method Type: general – SubjectFull: Impact (Mechanics) Type: general Titles: – TitleFull: Large eddy simulation of hydrodynamic and magnetohydrodynamic channel flows with a collocated finite-volume scheme and improved subgrid-scale modeling. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Prinz, Sebastian – PersonEntity: Name: NameFull: Boeck, Thomas – PersonEntity: Name: NameFull: Schumacher, Jörg IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 09977546 Numbering: – Type: volume Value: 72 Titles: – TitleFull: European Journal of Mechanics B: Fluids Type: main |
| ResultId | 1 |
