Investigation of coherent structures and dynamics using POD and DMD of a separated airfoil subjected to ZNMF jet forcing

N.A. Buchmann; V. Kitsios; C. Atkinson; J. Soria

doi:10.1007/978-3-319-06260-0_4

Investigation of coherent structures and dynamics using POD and DMD of a separated airfoil subjected to ZNMF jet forcing

N.A. Buchmann, V. Kitsios, C. Atkinson, J. Soria

Mechanical & Aerospace Engineering

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

3 Citations (Scopus)

Abstract

Proper Orthogonal Decomposition (POD) and Dynamic Mode
Decomposition (DMD)are applied to the unsteady separated flowfield over aNACA-0015 airfoil with periodic zero-net-mass-flux (ZNMF) jet forcing at the leading edge at an angle of attack α = 18o and chord based Reynolds number of Re = 3 × 104. This study presents experimental data for the forced flow case and recovers the dominant coherent structures and temporal characteristics that describe the evolution of the velocity perturbation. The dominant frequencies are identified by the DMD eigenvalues and the corresponding spatialmodes are compared to the dominant POD modes.

Original language	English
Title of host publication	Instability and Control of Massively Separated Flows: Proceedings of the International Conference on Instability and Control of Massively Separated Flows, held in Prato, Italy, from 4-6 September 2013
Editors	Vassilis Theofilis, Julio Soria
Place of Publication	Cham Switzerland
Publisher	Springer
Pages	33 - 38
Number of pages	6
ISBN (Print)	9783319062594
DOIs	https://doi.org/10.1007/978-3-319-06260-0_4
Publication status	Published - 2015

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10.1007/978-3-319-06260-0_4

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Buchmann, N. A., Kitsios, V., Atkinson, C., & Soria, J. (2015). Investigation of coherent structures and dynamics using POD and DMD of a separated airfoil subjected to ZNMF jet forcing. In V. Theofilis, & J. Soria (Eds.), Instability and Control of Massively Separated Flows: Proceedings of the International Conference on Instability and Control of Massively Separated Flows, held in Prato, Italy, from 4-6 September 2013 (pp. 33 - 38). Springer. https://doi.org/10.1007/978-3-319-06260-0_4

Buchmann, N.A. ; Kitsios, V. ; Atkinson, C. et al. / Investigation of coherent structures and dynamics using POD and DMD of a separated airfoil subjected to ZNMF jet forcing. Instability and Control of Massively Separated Flows: Proceedings of the International Conference on Instability and Control of Massively Separated Flows, held in Prato, Italy, from 4-6 September 2013. editor / Vassilis Theofilis ; Julio Soria. Cham Switzerland : Springer, 2015. pp. 33 - 38

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abstract = "Proper Orthogonal Decomposition (POD) and Dynamic ModeDecomposition (DMD)are applied to the unsteady separated flowfield over aNACA-0015 airfoil with periodic zero-net-mass-flux (ZNMF) jet forcing at the leading edge at an angle of attack α = 18o and chord based Reynolds number of Re = 3 × 104. This study presents experimental data for the forced flow case and recovers the dominant coherent structures and temporal characteristics that describe the evolution of the velocity perturbation. The dominant frequencies are identified by the DMD eigenvalues and the corresponding spatialmodes are compared to the dominant POD modes.",

author = "N.A. Buchmann and V. Kitsios and C. Atkinson and J. Soria",

year = "2015",

doi = "10.1007/978-3-319-06260-0_4",

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editor = "Vassilis Theofilis and Julio Soria",

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Buchmann, NA, Kitsios, V, Atkinson, C & Soria, J 2015, Investigation of coherent structures and dynamics using POD and DMD of a separated airfoil subjected to ZNMF jet forcing. in V Theofilis & J Soria (eds), Instability and Control of Massively Separated Flows: Proceedings of the International Conference on Instability and Control of Massively Separated Flows, held in Prato, Italy, from 4-6 September 2013. Springer, Cham Switzerland, pp. 33 - 38. https://doi.org/10.1007/978-3-319-06260-0_4

Investigation of coherent structures and dynamics using POD and DMD of a separated airfoil subjected to ZNMF jet forcing. / Buchmann, N.A.; Kitsios, V.; Atkinson, C. et al.
Instability and Control of Massively Separated Flows: Proceedings of the International Conference on Instability and Control of Massively Separated Flows, held in Prato, Italy, from 4-6 September 2013. ed. / Vassilis Theofilis; Julio Soria. Cham Switzerland: Springer, 2015. p. 33 - 38.

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

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T1 - Investigation of coherent structures and dynamics using POD and DMD of a separated airfoil subjected to ZNMF jet forcing

AU - Buchmann, N.A.

AU - Kitsios, V.

AU - Atkinson, C.

AU - Soria, J.

PY - 2015

Y1 - 2015

N2 - Proper Orthogonal Decomposition (POD) and Dynamic ModeDecomposition (DMD)are applied to the unsteady separated flowfield over aNACA-0015 airfoil with periodic zero-net-mass-flux (ZNMF) jet forcing at the leading edge at an angle of attack α = 18o and chord based Reynolds number of Re = 3 × 104. This study presents experimental data for the forced flow case and recovers the dominant coherent structures and temporal characteristics that describe the evolution of the velocity perturbation. The dominant frequencies are identified by the DMD eigenvalues and the corresponding spatialmodes are compared to the dominant POD modes.

AB - Proper Orthogonal Decomposition (POD) and Dynamic ModeDecomposition (DMD)are applied to the unsteady separated flowfield over aNACA-0015 airfoil with periodic zero-net-mass-flux (ZNMF) jet forcing at the leading edge at an angle of attack α = 18o and chord based Reynolds number of Re = 3 × 104. This study presents experimental data for the forced flow case and recovers the dominant coherent structures and temporal characteristics that describe the evolution of the velocity perturbation. The dominant frequencies are identified by the DMD eigenvalues and the corresponding spatialmodes are compared to the dominant POD modes.

UR - http://goo.gl/syAvZQ

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DO - 10.1007/978-3-319-06260-0_4

M3 - Chapter (Book)

SN - 9783319062594

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EP - 38

BT - Instability and Control of Massively Separated Flows: Proceedings of the International Conference on Instability and Control of Massively Separated Flows, held in Prato, Italy, from 4-6 September 2013

A2 - Theofilis, Vassilis

A2 - Soria, Julio

PB - Springer

CY - Cham Switzerland

ER -

Buchmann NA, Kitsios V, Atkinson C , Soria J. Investigation of coherent structures and dynamics using POD and DMD of a separated airfoil subjected to ZNMF jet forcing. In Theofilis V, Soria J, editors, Instability and Control of Massively Separated Flows: Proceedings of the International Conference on Instability and Control of Massively Separated Flows, held in Prato, Italy, from 4-6 September 2013. Cham Switzerland: Springer. 2015. p. 33 - 38 doi: 10.1007/978-3-319-06260-0_4

Investigation of coherent structures and dynamics using POD and DMD of a separated airfoil subjected to ZNMF jet forcing

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