Effect of DBD plasma actuators on vortical structures in a turbulent mixing layer

Srikar Yadala; Nicolas Benard; Marios Kotsonis; Franck Kerherve; Eric Moreau

Effect of DBD plasma actuators on vortical structures in a turbulent mixing layer

Srikar Yadala^*, Nicolas Benard, Marios Kotsonis, Franck Kerherve, Eric Moreau

^*Corresponding author for this work

Aerodynamics

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

124 Downloads (Pure)

Abstract

The influence of linear (spanwise-uniform) forcing applied by a DBD plasma actuator on the growth of a turbulent mixing layer and the dynamics of large-scale spanwise vortices, are investigated experimentally. Furthermore, the freestream turbulence intensity in the low-velocity stream is maintained at a high level to examine its impact on the control-authority of the applied forcing. The influence of the applied forcing on the dynamics and interactions of the spanwise vortices in the mixing layer is apparent. However, the growth rate of the mixing layer is not affected, suggesting that the high level of freestream turbulence diminishes the control-authority of the applied forcing.

Original language	English
Title of host publication	Proceedings of the 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019
Subtitle of host publication	30/07/19 - 2/08/19 Southampton, United Kingdom
Number of pages	6
Publication status	Published - 2019
Event	11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019 - Southampton, United Kingdom Duration: 30 Jul 2019 → 2 Aug 2019

Conference

Conference	11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019
Country/Territory	United Kingdom
City	Southampton
Period	30/07/19 → 2/08/19

Access to Document

232Accepted author manuscript, 764 KB

Cite this

@inproceedings{c0b7716dc2824a28b503fe8f7062c2a8,

title = "Effect of DBD plasma actuators on vortical structures in a turbulent mixing layer",

abstract = "The influence of linear (spanwise-uniform) forcing applied by a DBD plasma actuator on the growth of a turbulent mixing layer and the dynamics of large-scale spanwise vortices, are investigated experimentally. Furthermore, the freestream turbulence intensity in the low-velocity stream is maintained at a high level to examine its impact on the control-authority of the applied forcing. The influence of the applied forcing on the dynamics and interactions of the spanwise vortices in the mixing layer is apparent. However, the growth rate of the mixing layer is not affected, suggesting that the high level of freestream turbulence diminishes the control-authority of the applied forcing.",

author = "Srikar Yadala and Nicolas Benard and Marios Kotsonis and Franck Kerherve and Eric Moreau",

year = "2019",

language = "English",

booktitle = "Proceedings of the 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019",

note = "11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019 ; Conference date: 30-07-2019 Through 02-08-2019",

}

Yadala, S, Benard, N, Kotsonis, M, Kerherve, F & Moreau, E 2019, Effect of DBD plasma actuators on vortical structures in a turbulent mixing layer. in Proceedings of the 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019: 30/07/19 - 2/08/19 Southampton, United Kingdom. 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019, Southampton, United Kingdom, 30/07/19.

Effect of DBD plasma actuators on vortical structures in a turbulent mixing layer. / Yadala, Srikar; Benard, Nicolas; Kotsonis, Marios et al.
Proceedings of the 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019: 30/07/19 - 2/08/19 Southampton, United Kingdom. 2019.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Effect of DBD plasma actuators on vortical structures in a turbulent mixing layer

AU - Yadala, Srikar

AU - Benard, Nicolas

AU - Kotsonis, Marios

AU - Kerherve, Franck

AU - Moreau, Eric

PY - 2019

Y1 - 2019

N2 - The influence of linear (spanwise-uniform) forcing applied by a DBD plasma actuator on the growth of a turbulent mixing layer and the dynamics of large-scale spanwise vortices, are investigated experimentally. Furthermore, the freestream turbulence intensity in the low-velocity stream is maintained at a high level to examine its impact on the control-authority of the applied forcing. The influence of the applied forcing on the dynamics and interactions of the spanwise vortices in the mixing layer is apparent. However, the growth rate of the mixing layer is not affected, suggesting that the high level of freestream turbulence diminishes the control-authority of the applied forcing.

AB - The influence of linear (spanwise-uniform) forcing applied by a DBD plasma actuator on the growth of a turbulent mixing layer and the dynamics of large-scale spanwise vortices, are investigated experimentally. Furthermore, the freestream turbulence intensity in the low-velocity stream is maintained at a high level to examine its impact on the control-authority of the applied forcing. The influence of the applied forcing on the dynamics and interactions of the spanwise vortices in the mixing layer is apparent. However, the growth rate of the mixing layer is not affected, suggesting that the high level of freestream turbulence diminishes the control-authority of the applied forcing.

UR - http://www.scopus.com/inward/record.url?scp=85084018091&partnerID=8YFLogxK

M3 - Conference contribution

BT - Proceedings of the 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019

T2 - 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019

Y2 - 30 July 2019 through 2 August 2019

ER -

Effect of DBD plasma actuators on vortical structures in a turbulent mixing layer

Abstract

Conference

Access to Document

Other files and links

Fingerprint

Cite this