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Flow Field Investigations on the SACCON Configuration in Stationary and Pitching Mode by Means of Particle Image Velocimetry

Konrath, Robert and Roosenboom, Eric and Schröder, Andreas and Pallek, Dieter and Otter, Dirk (2011) Flow Field Investigations on the SACCON Configuration in Stationary and Pitching Mode by Means of Particle Image Velocimetry. Specialists Meeting AVT-189/RSM-028 on Assessment of Stability and Control Prediction Methods for NATO Air & Sea Vehicles, 12. - 14. Oct. 2011, Portsdown West, United Kingdom.

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Abstract

For the design of Unmanned Combat Air Vehicles (UCAV) the understanding of vortex dominated flow topologies above delta wing configurations constitute an important aspect. Complex flow patterns (vortex onset, development and interactions) are already present for delta wings in steady flight, and can cause adverse unsteady loading effects induced by vortex structure interactions. Such effects are even further complicated when the delta wing undergoes dynamic motions. Computations on unsteady UCAV configurations and motions are challenging. For unmanned vehicles g-force restrictions of the human are waived, i.e. enabling more complex dynamic motions and inherently more complex flow phenomena. Yet, even for normal dynamic motions unsteady flow phenomena are induced by the complex vortex interactions. In the present paper the three dimensional flow fields above a stationary and pitching Unmanned Combat Air Vehicle (UCAV) model are investigated using velocity and vorticity distributions obtained by Stereo-PIV measurements. Within the scope of NATO/RTO Task Group AVT-161 the SACCON (Stability And Control CONfiguration) model is used for analyzing synergetic design criteria and to reduce the timescale of design phase by integrating computational and experimental analyses early in the design chain. The aim of the PIV experiments is to provide flow field data for the validation of CFD computations, the determination of complex flow topologies, and the investigation of the vortex flow above the SACCON configuration responsible for non-linear effects.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Flow Field Investigations on the SACCON Configuration in Stationary and Pitching Mode by Means of Particle Image Velocimetry
Authors:
AuthorsInstitution or Email of Authors
Konrath, RobertUNSPECIFIED
Roosenboom, EricUNSPECIFIED
Schröder, AndreasUNSPECIFIED
Pallek, DieterUNSPECIFIED
Otter, DirkUNSPECIFIED
Date:2011
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:Conference Proceedings
Status:Published
Keywords:Unmanned Combat Air Vehicles (UCAV), SACCON (Stability And Control CONfiguration), Particle Image Velocimetry (PIV), CFD
Event Title:Specialists Meeting AVT-189/RSM-028 on Assessment of Stability and Control Prediction Methods for NATO Air & Sea Vehicles
Event Location:Portsdown West, United Kingdom
Event Type:international Conference
Event Dates:12. - 14. Oct. 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:02 Dec 2011 13:50
Last Modified:02 Dec 2011 13:50

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