Pulse actuation and its effects on separated lagrangian coherent structures for flow over a cambered airfoil

Martin H. Kamphuis; Gustaaf B. Jacobs; Kevin K. Chen; Geoffrey Spedding; Harry W.M. Hoeijmakers

doi:10.2514/6.2018-2255

Pulse actuation and its effects on separated lagrangian coherent structures for flow over a cambered airfoil

Martin H. Kamphuis, Gustaaf B. Jacobs, Kevin K. Chen, Geoffrey Spedding, Harry W.M. Hoeijmakers

Engineering Fluid Dynamics

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

4 Citations (Scopus)

Abstract

The effects of a pulse actuation on the Lagrangian Coherent Structures (LCS) in the separated flow over a NACA 65(1)-412 airfoil at low Reynolds number is investigated. A computational parametric study is performed on the effect of location over the suction side of the airfoil. An increased local separation angle leads to flow reattachment of the Lagrangian material line. Reattachment is accompanied by an increase in the lift and reduction in drag. The optimal pulse actuation is near the Lagrangian separation point.

Original language	English
Title of host publication	2018 AIAA Aerospace Sciences Meeting
Editors	Samuel D. Wright, Carl R. Hartsfield
Place of Publication	Reston, VA
Publisher	American Institute of Aeronautics and Astronautics
Edition	210059
ISBN (Electronic)	978-1-62410-524-1
ISBN (Print)	9781624105241
DOIs	https://doi.org/10.2514/6.2018-2255
Publication status	Published - 2018
Event	56th AIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States Duration: 8 Jan 2018 → 12 Jan 2018

Conference

Conference	56th AIAA Aerospace Sciences Meeting, 2018
Country/Territory	United States
City	Kissimmee
Period	8/01/18 → 12/01/18

Keywords

n/a OA procedure

Access to Document

10.2514/6.2018-2255

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Kamphuis, M. H., Jacobs, G. B., Chen, K. K., Spedding, G., & Hoeijmakers, H. W. M. (2018). Pulse actuation and its effects on separated lagrangian coherent structures for flow over a cambered airfoil. In S. D. Wright, & C. R. Hartsfield (Eds.), 2018 AIAA Aerospace Sciences Meeting (210059 ed.). American Institute of Aeronautics and Astronautics. Advance online publication. https://doi.org/10.2514/6.2018-2255

@inproceedings{8a9b1e949f35469cae3a62a559f85625,

title = "Pulse actuation and its effects on separated lagrangian coherent structures for flow over a cambered airfoil",

abstract = "The effects of a pulse actuation on the Lagrangian Coherent Structures (LCS) in the separated flow over a NACA 65(1)-412 airfoil at low Reynolds number is investigated. A computational parametric study is performed on the effect of location over the suction side of the airfoil. An increased local separation angle leads to flow reattachment of the Lagrangian material line. Reattachment is accompanied by an increase in the lift and reduction in drag. The optimal pulse actuation is near the Lagrangian separation point.",

keywords = "n/a OA procedure",

author = "Kamphuis, {Martin H.} and Jacobs, {Gustaaf B.} and Chen, {Kevin K.} and Geoffrey Spedding and Hoeijmakers, {Harry W.M.}",

note = "Funding Information: We gratefully acknowledge funding under AFOSR-G00011458 of the Flow Control Program headed by Douglas Smith and funding from Solar Turbines. Publisher Copyright: {\textcopyright} 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.; 56th AIAA Aerospace Sciences Meeting, 2018 ; Conference date: 08-01-2018 Through 12-01-2018",

year = "2018",

doi = "10.2514/6.2018-2255",

language = "English",

isbn = "9781624105241",

editor = "Wright, {Samuel D.} and Hartsfield, {Carl R.}",

booktitle = "2018 AIAA Aerospace Sciences Meeting",

publisher = "American Institute of Aeronautics and Astronautics",

address = "United States",

edition = "210059",

}

Kamphuis, MH, Jacobs, GB, Chen, KK, Spedding, G & Hoeijmakers, HWM 2018, Pulse actuation and its effects on separated lagrangian coherent structures for flow over a cambered airfoil. in SD Wright & CR Hartsfield (eds), 2018 AIAA Aerospace Sciences Meeting. 210059 edn, American Institute of Aeronautics and Astronautics, Reston, VA, 56th AIAA Aerospace Sciences Meeting, 2018, Kissimmee, Florida, United States, 8/01/18. https://doi.org/10.2514/6.2018-2255

Pulse actuation and its effects on separated lagrangian coherent structures for flow over a cambered airfoil. / Kamphuis, Martin H.; Jacobs, Gustaaf B.; Chen, Kevin K. et al.
2018 AIAA Aerospace Sciences Meeting. ed. / Samuel D. Wright; Carl R. Hartsfield. 210059. ed. Reston, VA: American Institute of Aeronautics and Astronautics, 2018.

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

TY - GEN

T1 - Pulse actuation and its effects on separated lagrangian coherent structures for flow over a cambered airfoil

AU - Kamphuis, Martin H.

AU - Jacobs, Gustaaf B.

AU - Chen, Kevin K.

AU - Spedding, Geoffrey

AU - Hoeijmakers, Harry W.M.

N1 - Funding Information: We gratefully acknowledge funding under AFOSR-G00011458 of the Flow Control Program headed by Douglas Smith and funding from Solar Turbines. Publisher Copyright: © 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

PY - 2018

Y1 - 2018

N2 - The effects of a pulse actuation on the Lagrangian Coherent Structures (LCS) in the separated flow over a NACA 65(1)-412 airfoil at low Reynolds number is investigated. A computational parametric study is performed on the effect of location over the suction side of the airfoil. An increased local separation angle leads to flow reattachment of the Lagrangian material line. Reattachment is accompanied by an increase in the lift and reduction in drag. The optimal pulse actuation is near the Lagrangian separation point.

AB - The effects of a pulse actuation on the Lagrangian Coherent Structures (LCS) in the separated flow over a NACA 65(1)-412 airfoil at low Reynolds number is investigated. A computational parametric study is performed on the effect of location over the suction side of the airfoil. An increased local separation angle leads to flow reattachment of the Lagrangian material line. Reattachment is accompanied by an increase in the lift and reduction in drag. The optimal pulse actuation is near the Lagrangian separation point.

KW - n/a OA procedure

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U2 - 10.2514/6.2018-2255

DO - 10.2514/6.2018-2255

M3 - Conference contribution

AN - SCOPUS:85141559031

SN - 9781624105241

BT - 2018 AIAA Aerospace Sciences Meeting

A2 - Wright, Samuel D.

A2 - Hartsfield, Carl R.

PB - American Institute of Aeronautics and Astronautics

CY - Reston, VA

T2 - 56th AIAA Aerospace Sciences Meeting, 2018

Y2 - 8 January 2018 through 12 January 2018

ER -

Pulse actuation and its effects on separated lagrangian coherent structures for flow over a cambered airfoil

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