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In-flight flow visualisation using Particle Image Velocimetry

Politz, Christina und Lawson, Nicholas und Konrath, Robert und Agocs, Janos und Schröder, Andreas (2010) In-flight flow visualisation using Particle Image Velocimetry. 15th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 05. - 08.07.2010, Lisbon, Portugal.

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Offizielle URL: http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2010/programme.asp

Kurzfassung

Applying advanced non-intrusive flow visualisation techniques to an in-flight environment is a challenging task which can provide invaluable data. The ability to capture complex flow structures under free atmospherical influences and in real flight conditions can potentially supply data for numerical technique validation and wind tunnel measurements. Within the scope of a European research project several optical methods have been implemented to different types of aircraft to test their feasibility during flight or ground based vortex investigations. This paper reports on the installation of a modified PIV setup inside a DLR research aircraft and the subsequent PIV flight tests. During the project several problems occurred. On the one hand, a number of certification procedures were required. PIV laser systems in general are hazardous in their operation and high safety standards have to be defined to tackle the severe risk of such a high energy light source. These provisions resulted in operational restrictions during the flights. The arrangement of this experimental procedure was specified and certified for a Dornier DO 228-101 aircraft by the German Aerospace Center (DLR) together with Cranfield University. Furthermore, finding feasible tracer particles (i.e. seeding) presents a significant challenge as the use of standard PIV seeding generators in-flight is not a practical option. Therefore, another approach has to be pursued and this research has shown the best way to provide viable seeding is by flying through natural aerosols – such as those in clouds.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:In-flight flow visualisation using Particle Image Velocimetry
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Politz, ChristinaNICHT SPEZIFIZIERT
Lawson, NicholasCranfield University, GB
Konrath, RobertNICHT SPEZIFIZIERT
Agocs, JanosNICHT SPEZIFIZIERT
Schröder, AndreasNICHT SPEZIFIZIERT
Datum:2010
Referierte Publikation:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Seitenbereich:Seiten 1-10
Name der Reihe:Conference Proceedings on USB-Stick
Status:veröffentlicht
Stichwörter:Particle Image Velocimetry (PIV), Flight Test, Cloud Particles
Veranstaltungstitel:15th International Symposium on Applications of Laser Techniques to Fluid Mechanics
Veranstaltungsort:Lisbon, Portugal
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:05. - 08.07.2010
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Flugphysik
Standort: Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren
Hinterlegt von: Ilka Micknaus
Hinterlegt am:23 Jul 2010 11:14
Letzte Änderung:01 Nov 2010 08:52

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