DC Field | Value | Language |
---|---|---|
dc.contributor.author | Singh, S | - |
dc.contributor.author | You, D | - |
dc.date.accessioned | 2016-03-31T08:07:39Z | - |
dc.date.available | 2016-03-31T08:07:39Z | - |
dc.date.created | 2014-03-20 | - |
dc.date.issued | 2013-08 | - |
dc.identifier.issn | 0142-727X | - |
dc.identifier.other | 2013-OAK-0000029625 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/14620 | - |
dc.description.abstract | A dynamic global-coefficient mixed subgrid-scale eddy-viscosity model for large-eddy simulation of turbulent flows in complex geometries is developed. In the present model, the subgrid-scale stress is decomposed into the modified Leonard stress, cross stress, and subgrid-scale Reynolds stress. The modified Leonard stress is explicitly computed assuming a scale similarity, while the cross stress and the subgrid-scale Reynolds stress are modeled using the global-coefficient eddy-viscosity model. The model coefficient is determined by a dynamic procedure based on the global-equilibrium between the subgrid-scale dissipation and the viscous dissipation. The new model relieves some of the difficulties associated with an eddy-viscosity closure, such as the nonalignment of the principal axes of the subgrid-scale stress tensor and the strain rate tensor and the anisotropy of turbulent flow fields, while, like other dynamic global-coefficient models, it does not require averaging or clipping of the model coefficient for numerical stabilization. The combination of the global-coefficient eddy-viscosity model and a scale-similarity model is demonstrated to produce improved predictions in a number of turbulent flow simulations. (c) 2013 Elsevier Inc. All rights reserved. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.relation.isPartOf | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | - |
dc.subject | Subgrid-scale model | - |
dc.subject | Large-eddy simulation | - |
dc.subject | Turbulence simulation | - |
dc.subject | Global-coefficient model | - |
dc.subject | Scale-similarity model | - |
dc.subject | Navier-Stokes equations | - |
dc.subject | NAVIER-STOKES EQUATIONS | - |
dc.subject | COMPLEX GEOMETRIES | - |
dc.title | A dynamic global-coefficient mixed subgrid-scale model for large-eddy simulation of turbulent flows | - |
dc.type | Article | - |
dc.contributor.college | 기계공학과 | - |
dc.identifier.doi | 10.1016/J.IJHEATFLUIDFLOW.2013.02.008 | - |
dc.author.google | Singh, S | - |
dc.author.google | You, D | - |
dc.relation.volume | 42 | - |
dc.relation.startpage | 94 | - |
dc.relation.lastpage | 104 | - |
dc.contributor.id | 10201266 | - |
dc.relation.journal | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCIE | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, v.42, pp.94 - 104 | - |
dc.identifier.wosid | 000321725100008 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 104 | - |
dc.citation.startPage | 94 | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | - |
dc.citation.volume | 42 | - |
dc.contributor.affiliatedAuthor | You, D | - |
dc.identifier.scopusid | 2-s2.0-84879162640 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 9 | - |
dc.description.scptc | 8 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Subgrid-scale model | - |
dc.subject.keywordAuthor | Large-eddy simulation | - |
dc.subject.keywordAuthor | Turbulence simulation | - |
dc.subject.keywordAuthor | Global-coefficient model | - |
dc.subject.keywordAuthor | Scale-similarity model | - |
dc.subject.keywordAuthor | Navier-Stokes equations | - |
dc.relation.journalWebOfScienceCategory | Thermodynamics | - |
dc.relation.journalWebOfScienceCategory | Engineering, Mechanical | - |
dc.relation.journalWebOfScienceCategory | Mechanics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Thermodynamics | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Mechanics | - |
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