Criscione, A.

Frohnapfel, B.

Hasegawa, Y.

Kasagi, N.

Tropea, C.

English

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Abstract Submittedfor the DFD09 Meeting ofThe American Physical SocietyPreliminary numerical assessment of turbulent skin frictioncontrol with plasma actuators BETTINA FROHNAPFEL, ANTONIOCRISCIONE, CAMERON TROPEA, Technical University Darmstadt, YOSUKEHASEGAWA, NOBUHIDE KASAGI, The University of Tokyo — Plasma actuators(PA) introduce a body force in the near-wall region of a fluid flow. This body forcehas already been successfully used for separation and transition flow control. Weinvestigate the possibility of applying PAs to turbulent skin friction drag reductionby testing the effect of a modelled PA’s body force in a numerically simulated turbu-lent channel flow. The body force is implemented into a control loop, which aims atimpeding the spanwise velocity component near the wall surface. We assume to em-ploy distributed sensors and actuators of finite size in order to investigate optimumactuator sizes for practical applications. Since the detailed physics of the body forcegeneration by PAs and the resulting force distributions are still under study and amatter of discussion, we employ different models for the force distribution with thegoal to identify the critical requirements for skin friction drag reduction with PAs.Bettina FrohnapfelTechnical University DarmstadtDate submitted: 10 Aug 2009 Electronic form version 1.4

Preliminary numerical assessment of turbulent skin friction control with plasma actuators

https://publikationen.bibliothek.kit.edu/1000029207/2227721

Preliminary numerical assessment of turbulent skin friction control with plasma actuators

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