The structure of APG turbulent boundary layers

Ayse G. Gungor; Yvan Maciel; Mark P. Simens

doi:10.1007/978-3-319-20388-1_25

The structure of APG turbulent boundary layers

Ayse G. Gungor^*, Yvan Maciel, Mark P. Simens

^*Corresponding author for this work

Department of Astronautical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The characteristics of three-dimensional intense uv-structures (Qs) in a strongly decelerated large-velocity-defect boundary layer are analyzed. The Q2 and Q4 structures are found to be different from those of turbulent channel flows studied by Lozano-Durán et al. (J Fluid Mech 694:100-130, 2012). They are less streamwise elongated, less present near the wall and wall-detached structures are more numerous. Moreover, contrary to channel flows, wall-detached Q2, and Q4 structures contribute significantly to the Reynolds shear stress.

Original language	English
Title of host publication	Progress in Wall Turbulence 2
Subtitle of host publication	Understanding and Modelling
Editors	Javier Jimenez, Ivan Marusic, Michel Stanislas
Publisher	Springer Netherland
Pages	283-293
Number of pages	11
ISBN (Print)	9783319203874
DOIs	https://doi.org/10.1007/978-3-319-20388-1_25
Publication status	Published - 2016
Event	2nd WALLTURB Workshop on Understanding and modelling of wall turbulence, 2014 - Lille, France Duration: 18 Jun 2014 → 20 Jun 2014

Publication series

Name	ERCOFTAC Series
Volume	23
ISSN (Print)	1382-4309
ISSN (Electronic)	2215-1826

Conference

Conference	2nd WALLTURB Workshop on Understanding and modelling of wall turbulence, 2014
Country/Territory	France
City	Lille
Period	18/06/14 → 20/06/14

Bibliographical note

Publisher Copyright:
© Springer International Publishing Switzerland 2016.

Funding

Funded in part by the Multiflow program of the European Research Council. YM was supported in part by NSERC of Canada. We are grateful to A. Lozano-Durán for providing the data processing programs for the analysis of the Q structures.

Funders	Funder number
Natural Sciences and Engineering Research Council of Canada
European Research Council

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10.1007/978-3-319-20388-1_25

Cite this

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title = "The structure of APG turbulent boundary layers",

abstract = "The characteristics of three-dimensional intense uv-structures (Qs) in a strongly decelerated large-velocity-defect boundary layer are analyzed. The Q2 and Q4 structures are found to be different from those of turbulent channel flows studied by Lozano-Dur{\'a}n et al. (J Fluid Mech 694:100-130, 2012). They are less streamwise elongated, less present near the wall and wall-detached structures are more numerous. Moreover, contrary to channel flows, wall-detached Q2, and Q4 structures contribute significantly to the Reynolds shear stress.",

author = "Gungor, {Ayse G.} and Yvan Maciel and Simens, {Mark P.}",

note = "Publisher Copyright: {\textcopyright} Springer International Publishing Switzerland 2016.; 2nd WALLTURB Workshop on Understanding and modelling of wall turbulence, 2014 ; Conference date: 18-06-2014 Through 20-06-2014",

year = "2016",

doi = "10.1007/978-3-319-20388-1_25",

language = "English",

isbn = "9783319203874",

series = "ERCOFTAC Series",

publisher = "Springer Netherland",

pages = "283--293",

editor = "Javier Jimenez and Ivan Marusic and Michel Stanislas",

booktitle = "Progress in Wall Turbulence 2",

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Gungor, AG, Maciel, Y & Simens, MP 2016, The structure of APG turbulent boundary layers. in J Jimenez, I Marusic & M Stanislas (eds), Progress in Wall Turbulence 2: Understanding and Modelling. ERCOFTAC Series, vol. 23, Springer Netherland, pp. 283-293, 2nd WALLTURB Workshop on Understanding and modelling of wall turbulence, 2014, Lille, France, 18/06/14. https://doi.org/10.1007/978-3-319-20388-1_25

The structure of APG turbulent boundary layers. / Gungor, Ayse G.; Maciel, Yvan; Simens, Mark P.
Progress in Wall Turbulence 2: Understanding and Modelling. ed. / Javier Jimenez; Ivan Marusic; Michel Stanislas. Springer Netherland, 2016. p. 283-293 (ERCOFTAC Series; Vol. 23).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - The characteristics of three-dimensional intense uv-structures (Qs) in a strongly decelerated large-velocity-defect boundary layer are analyzed. The Q2 and Q4 structures are found to be different from those of turbulent channel flows studied by Lozano-Durán et al. (J Fluid Mech 694:100-130, 2012). They are less streamwise elongated, less present near the wall and wall-detached structures are more numerous. Moreover, contrary to channel flows, wall-detached Q2, and Q4 structures contribute significantly to the Reynolds shear stress.

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ER -

The structure of APG turbulent boundary layers

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Bibliographical note

Funding

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