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Preliminary Numerical Assessment of Turbulent Flow Control with Plasma Actuators

Criscione, Antonio ; Frohnapfel, Bettina ; Tropea, Cameron (2011)
Preliminary Numerical Assessment of Turbulent Flow Control with Plasma Actuators.
17. DGLR-Fach-Symposium der STAB 2010. Berlin (09.10.-10.10.2010)
Conference or Workshop Item, Primary publication

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Item Type: Conference or Workshop Item
Type of entry: Primary publication
Title: Preliminary Numerical Assessment of Turbulent Flow Control with Plasma Actuators
Language: English
Date: 29 July 2011
Place of Publication: Darmstadt
Event Title: 17. DGLR-Fach-Symposium der STAB 2010
Event Location: Berlin
Event Dates: 09.10.-10.10.2010
Abstract:

A numerical investigation of damping of near-wall spanwise velocity fluctuations in a turbulent channel flow is carried out. Spanwise damping is realized with a body force which mimics the characteristic force distribution of plasma actuators. This force distribution is implemented in a direct numerical simulation. The body force is triggered by the signal of a sensor in upstream location. The control loop is applied with different actuator configurations, considering a spatially continuous and discontinuous body force distribution at the wall. The influence of distributed sensors and actuators of finite size on the control loop performance is investigated. The results show a reduction of the skin friction at the wall with maximum power saving rates up to 20%.

URN: urn:nbn:de:tuda-tuprints-26938
Classification DDC: 500 Science and mathematics > 500 Science
Divisions: 16 Department of Mechanical Engineering
Date Deposited: 29 Jul 2011 09:28
Last Modified: 29 Sep 2023 11:44
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/2693
PPN: 386254990
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