Criscione, Antonio and Frohnapfel, Bettina and Tropea, Cameron
Preliminary Numerical Assessment of Turbulent Flow Control with Plasma Actuators.
In: 17. DGLR-Fach-Symposium der STAB 2010, Berlin, Germany.
[Conference or Workshop Item], (2010)
Available under Creative Commons Attribution Non-commercial No Derivatives, 2.5.
Download (518kB) | Preview
|Item Type:||Conference or Workshop Item|
|Title:||Preliminary Numerical Assessment of Turbulent Flow Control with Plasma Actuators|
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%.
|Classification DDC:||500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften|
|Divisions:||16 Department of Mechanical Engineering|
|Event Title:||17. DGLR-Fach-Symposium der STAB 2010, Berlin, Germany|
|Date Deposited:||29 Jul 2011 09:28|
|Last Modified:||07 Dec 2012 12:00|