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Experimental and Numerical Characterization of a Plasma-Driven Jet Actuator for Active Control of Turbulent Base Flow Phenomena

Kirchheck, Daniel and Saile, Dominik and Gülhan, Ali (2014) Experimental and Numerical Characterization of a Plasma-Driven Jet Actuator for Active Control of Turbulent Base Flow Phenomena. Project Report.

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Abstract

Subject is the characterization of a plasma-driven jet actuator for active control of turbulent base flow phenomena. The motivation is to determine its suitability with respect to generic launcher geometries focused on the transonic part of a typical ascend trajectory. A configuration, based on the known SparkJet concept, is implemented and investigated by means of experimental and numerical characterization. High-speed Schlieren visualization and the results of transient axisymmetric CFD simulations are being compared in terms of topological features and quantitative distance–time and velocity–time information on the jet propagation to find out its range of operating conditions. Crossflow velocities in the range of 500 to 1000m/s utilizing high-energy jets of up to 16J of capacitive energy could be achieved. For lower energy setups, maximum actuation frequencies are found to be greater than 20kHz in a natural resonant circuit, which is assumed to be sufficient for periodical excitation of base flow instablities. The examined concept of plasma-ctuation is considered highly flexible with respect to different actuation mechanisms. Therefore, further investigations are proposed to focus on low-energy impulses directly influencing stability modes following the modern understanding of active flow control.

Item URL in elib:https://elib.dlr.de/99109/
Document Type:Monograph (Project Report)
Title:Experimental and Numerical Characterization of a Plasma-Driven Jet Actuator for Active Control of Turbulent Base Flow Phenomena
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kirchheck, Danieldaniel.kirchheck (at) dlr.deUNSPECIFIED
Saile, DominikDominik.Saile (at) dlr.deUNSPECIFIED
Gülhan, Aliali.guelhan (at) dlr.deUNSPECIFIED
Date:2014
Journal or Publication Title:SFB/TRR40 : Technological foundations for the design of thermally and mechanically highly loaded components of future space transportation systems : Annual Report 2014
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:plasma jet actuator, flow control, base flow
Institution:Technische Universität München
Department:Lehrstuhl für Aerodynamik
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Konzepte und Entwurf
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Über- und Hyperschalltechnologien
Deposited By: Kirchheck, Daniel
Deposited On:05 Nov 2015 06:57
Last Modified:18 Sep 2017 14:22

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