Multi-scale simulation of near-wall turbulent flows

Ayse Gul Gungor; Suresh Menon

doi:10.1007/978-90-481-3652-0_24

Multi-scale simulation of near-wall turbulent flows

Ayse Gul Gungor
, Suresh Menon

Georgia Institute of Technology

Araştırma sonucu: Kitap/Rapor/Konferans Bildirisinde Bölüm › Konferans katkısı › bilirkişi

2 Atıf (Scopus)

Özet

A hybrid two-level large eddy simulation (TLS-LES) is used to study turbulent flow in a converging-diverging channel, which represents a challenging test case due to the appearance of flow separation and subsequent reattachment. While a conventional LES using a localized dynamic subgrid model is employed away from the wall, in the near-wall region a new two-scale approach called the two-level simulation (TLS) approach is employed. A hybrid scale separating operator is used to couple the LES and TLS regimes, and the combined approach that does not contain any ad hoc adjustable parameters is used to simulate high Re wall-bounded flows. The results show that the hybrid TLS-LES approach yields very reasonable predictions of most of the crucial flow features in-spite of using a relatively coarse large-scale grid.

Orijinal dil	İngilizce
Ana bilgisayar yayını başlığı	Direct and Large-Eddy Simulation VII - Proceedings of the 7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008
Editörler	Bernard Geurts, Jochen Frohlich, Vincenzo Armenio
Yayınlayan	Springer Netherland
Sayfalar	161-166
Sayfa sayısı	6
ISBN (Basılı)	9789048136513
DOI'lar	https://doi.org/10.1007/978-90-481-3652-0_24
Yayın durumu	Yayınlandı - 2010
Harici olarak yayınlandı	Evet
Etkinlik	7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008 - Trieste, Italy Süre: 8 Eyl 2008 → 10 Eyl 2008

Yayın serisi

Adı	ERCOFTAC Series
Hacim	13
ISSN (Basılı)	1382-4309
ISSN (Elektronik)	2215-1826

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???	7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008
Ülke/Bölge	Italy
Şehir	Trieste
Periyot	8/09/08 → 10/09/08

Bibliyografik not

Publisher Copyright:
© Springer Science+Business Media B.V. 2010.

Finansman

The authors are grateful to J.-P. Laval for providing the DNS data. This work is supported by the Office of Naval Research.

Finansörler
Office of Naval Research

Belgeye Erişim

10.1007/978-90-481-3652-0_24

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

Gungor, A. G., & Menon, S. (2010). Multi-scale simulation of near-wall turbulent flows. In B. Geurts, J. Frohlich, & V. Armenio (Eds.), Direct and Large-Eddy Simulation VII - Proceedings of the 7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008 (pp. 161-166). (ERCOFTAC Series; Hac. 13). Springer Netherland. https://doi.org/10.1007/978-90-481-3652-0_24

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title = "Multi-scale simulation of near-wall turbulent flows",

abstract = "A hybrid two-level large eddy simulation (TLS-LES) is used to study turbulent flow in a converging-diverging channel, which represents a challenging test case due to the appearance of flow separation and subsequent reattachment. While a conventional LES using a localized dynamic subgrid model is employed away from the wall, in the near-wall region a new two-scale approach called the two-level simulation (TLS) approach is employed. A hybrid scale separating operator is used to couple the LES and TLS regimes, and the combined approach that does not contain any ad hoc adjustable parameters is used to simulate high Re wall-bounded flows. The results show that the hybrid TLS-LES approach yields very reasonable predictions of most of the crucial flow features in-spite of using a relatively coarse large-scale grid.",

author = "Gungor, \{Ayse Gul\} and Suresh Menon",

note = "Publisher Copyright: {\textcopyright} Springer Science+Business Media B.V. 2010.; 7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008 ; Conference date: 08-09-2008 Through 10-09-2008",

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doi = "10.1007/978-90-481-3652-0\_24",

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Gungor, AG & Menon, S 2010, Multi-scale simulation of near-wall turbulent flows. in B Geurts, J Frohlich & V Armenio (eds), Direct and Large-Eddy Simulation VII - Proceedings of the 7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008. ERCOFTAC Series, hac. 13, Springer Netherland, pp. 161-166, 7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008, Trieste, Italy, 8/09/08. https://doi.org/10.1007/978-90-481-3652-0_24

Multi-scale simulation of near-wall turbulent flows. / Gungor, Ayse Gul; Menon, Suresh.
Direct and Large-Eddy Simulation VII - Proceedings of the 7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008. ed. / Bernard Geurts; Jochen Frohlich; Vincenzo Armenio. Springer Netherland, 2010. p. 161-166 (ERCOFTAC Series; Hac. 13).

Araştırma sonucu: Kitap/Rapor/Konferans Bildirisinde Bölüm › Konferans katkısı › bilirkişi

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T1 - Multi-scale simulation of near-wall turbulent flows

AU - Gungor, Ayse Gul

AU - Menon, Suresh

PY - 2010

Y1 - 2010

N2 - A hybrid two-level large eddy simulation (TLS-LES) is used to study turbulent flow in a converging-diverging channel, which represents a challenging test case due to the appearance of flow separation and subsequent reattachment. While a conventional LES using a localized dynamic subgrid model is employed away from the wall, in the near-wall region a new two-scale approach called the two-level simulation (TLS) approach is employed. A hybrid scale separating operator is used to couple the LES and TLS regimes, and the combined approach that does not contain any ad hoc adjustable parameters is used to simulate high Re wall-bounded flows. The results show that the hybrid TLS-LES approach yields very reasonable predictions of most of the crucial flow features in-spite of using a relatively coarse large-scale grid.

AB - A hybrid two-level large eddy simulation (TLS-LES) is used to study turbulent flow in a converging-diverging channel, which represents a challenging test case due to the appearance of flow separation and subsequent reattachment. While a conventional LES using a localized dynamic subgrid model is employed away from the wall, in the near-wall region a new two-scale approach called the two-level simulation (TLS) approach is employed. A hybrid scale separating operator is used to couple the LES and TLS regimes, and the combined approach that does not contain any ad hoc adjustable parameters is used to simulate high Re wall-bounded flows. The results show that the hybrid TLS-LES approach yields very reasonable predictions of most of the crucial flow features in-spite of using a relatively coarse large-scale grid.

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M3 - Conference contribution

AN - SCOPUS:84964899583

SN - 9789048136513

T3 - ERCOFTAC Series

SP - 161

EP - 166

BT - Direct and Large-Eddy Simulation VII - Proceedings of the 7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008

A2 - Geurts, Bernard

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A2 - Armenio, Vincenzo

PB - Springer Netherland

T2 - 7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008

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ER -

Multi-scale simulation of near-wall turbulent flows

Özet

Yayın serisi

???event.eventtypes.event.conference???

Bibliyografik not

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap