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Plasma actuators for separation control on bluff bodies
KTH, School of Engineering Sciences (SCI), Mechanics.
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2017. , p. 74
Series
TRITA-MEK, ISSN 0348-467X ; 2017:02
National Category
Fluid Mechanics and Acoustics
Research subject
Engineering Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-203208ISBN: 978-91-7729-280-7 (print)OAI: oai:DiVA.org:kth-203208DiVA, id: diva2:1081225
Public defence
2017-03-17, F3, Lindstedtsvägen 26, Stockholm, 10:15
Supervisors
Note

QC 20170313

Available from: 2017-03-13 Created: 2017-03-13 Last updated: 2017-03-14Bibliographically approved
List of papers
1. Measurements of the electric wind induced by a Single Dielectric Barrier Discharge plasma actuator
Open this publication in new window or tab >>Measurements of the electric wind induced by a Single Dielectric Barrier Discharge plasma actuator
(English)Manuscript (preprint) (Other academic)
National Category
Fluid Mechanics and Acoustics
Identifiers
urn:nbn:se:kth:diva-203137 (URN)
Note

QC 20170314

Available from: 2017-03-13 Created: 2017-03-13 Last updated: 2017-03-14Bibliographically approved
2. A turbulent boundary layer with pressure gradient, curvature and separation: results from hot-wire measurements
Open this publication in new window or tab >>A turbulent boundary layer with pressure gradient, curvature and separation: results from hot-wire measurements
(English)Manuscript (preprint) (Other academic)
National Category
Fluid Mechanics and Acoustics
Identifiers
urn:nbn:se:kth:diva-203138 (URN)
Note

QC 20170314

Available from: 2017-03-13 Created: 2017-03-13 Last updated: 2017-03-14Bibliographically approved
3. Separation control by means of plasma actuation on a half cylinder approached by a turbulent boundary layer.
Open this publication in new window or tab >>Separation control by means of plasma actuation on a half cylinder approached by a turbulent boundary layer.
2015 (English)In: Journal of Wind Engineering and Industrial Aerodynamics, ISSN 0167-6105, E-ISSN 1872-8197, Vol. 145, p. 318-326Article in journal (Refereed) Published
Abstract [en]

The flow around a half cylinder (i.e. an immersed cylinder in a flat plate) approached by a turbulent boundary layer is studied, with the aim to control separation via steady Dielectric Barrier Discharge (DBD) plasma actuation. The electric wind induced by a single DBD plasma actuator is studied in quiescent air to understand the role of the different driving parameters and how the cylindrical shape influences the downstream development of the induced electric wind. A double DBD plasma actuator is then placed on the cylinder and the influence of the position of the actuator is studied in order to find the best achievable control. Comparison of the controlled and uncontrolled cases, using both hot-wire anemometry and pressure measurements, shows that a reduction of the separation bubble is possible. By optimizing the position of the double actuator, a reduction of up to 30% of the drag is achieved. The present geometry is chosen as a generic model of the flow around the front corners (A-pillars) of a truck cabin and the work is performed with the long-term vision to be able to reduce drag on trucks.

Place, publisher, year, edition, pages
Elsevier, 2015
Keyword
Half-cylinder wake, Plasma actuation, Separation control, Vehicle aerodynamics
National Category
Fluid Mechanics and Acoustics
Research subject
Engineering Mechanics
Identifiers
urn:nbn:se:kth:diva-179946 (URN)10.1016/j.jweia.2015.06.002 (DOI)000362145700029 ()2-s2.0-84955484731 (Scopus ID)
Note

QC 20160113

Available from: 2016-01-05 Created: 2016-01-05 Last updated: 2017-12-01Bibliographically approved
4. Flow separation control by DBD plasma actuation: Part A: Steady and pulsed momentum injection
Open this publication in new window or tab >>Flow separation control by DBD plasma actuation: Part A: Steady and pulsed momentum injection
(English)Manuscript (preprint) (Other academic)
National Category
Fluid Mechanics and Acoustics
Identifiers
urn:nbn:se:kth:diva-203140 (URN)
Note

QC 20170314

Available from: 2017-03-13 Created: 2017-03-13 Last updated: 2017-03-14Bibliographically approved
5. Flow separation control by DBD plasma actuation: Part B: Steamwise vortex generators
Open this publication in new window or tab >>Flow separation control by DBD plasma actuation: Part B: Steamwise vortex generators
(English)Manuscript (preprint) (Other academic)
National Category
Fluid Mechanics and Acoustics
Identifiers
urn:nbn:se:kth:diva-203141 (URN)
Note

QC 20170314

Available from: 2017-03-13 Created: 2017-03-13 Last updated: 2017-03-14Bibliographically approved
6. Proof-of-concept experiment with plasma streamwise vortex generators for flow separation control on trucks
Open this publication in new window or tab >>Proof-of-concept experiment with plasma streamwise vortex generators for flow separation control on trucks
(English)Manuscript (preprint) (Other academic)
National Category
Fluid Mechanics and Acoustics
Identifiers
urn:nbn:se:kth:diva-203192 (URN)
Note

QC 20170314

Available from: 2017-03-13 Created: 2017-03-13 Last updated: 2017-03-14Bibliographically approved

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Citation style
  • apa
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  • Other style
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Output format
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