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Accepting a Challenge - The Development of PIV for Application in pressurized cryogenic Wind Tunnels

Quest, Jürgen und Konrath, Robert (2011) Accepting a Challenge - The Development of PIV for Application in pressurized cryogenic Wind Tunnels. 41st AIAA Fluid Dynamics Conference and Exhibit, 27. - 30. Jun. 2011, Honolulu, Hawaii, USA.

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Offizielle URL: http://www.aiaa.com

Kurzfassung

The development and application of a Stereo-PIV system in the cryogenic transonic wind tunnel ETW enabling detailed flow field analyses on scaled models of transport aircraft at flight Mach- and Reynolds numbers is described. The specific conditions in such wind tunnels as cryogenic gas temperatures down to 110 K and moderate gas pressures of up to 450kPa as well as a large plenum encapsulating the test section made specific developments necessary. This comprises the generation of suitable flow tracers for cryogenic flows considering the specific requirements for an application in the ETW as well as the supply of laser light of high pulse energy and optical components to be placed within the cryogenic environment. Optical effects due to gas density changes within the wind tunnel plenum and light beam deflections or shifts are considered in the optical design of the CRYO-PIV system. Following trials in the cryogenic research tunnel PETW the applicability of the developed system is successfully demonstrated in the ETW during two test campaigns for a full scale and a half- model of a transport aircraft. The employed Stereo-PIV system and first results of the measurements are discussed. Scheduled next steps for improvements based on the gained experiences are outlined.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:Accepting a Challenge - The Development of PIV for Application in pressurized cryogenic Wind Tunnels
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Quest, JürgenETW
Konrath, RobertNICHT SPEZIFIZIERT
Datum:2011
Referierte Publikation:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Name der Reihe:Conference Proceedings Online
Status:veröffentlicht
Stichwörter:CRYO-PIV system, ETW, Particle Image Velocimetry (PIV), Stereo-PIV, cryogenic transonic wind tunnel
Veranstaltungstitel:41st AIAA Fluid Dynamics Conference and Exhibit
Veranstaltungsort:Honolulu, Hawaii, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:27. - 30. Jun. 2011
Veranstalter :AIAA
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
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:17 Jan 2012 12:18
Letzte Änderung:17 Jan 2012 12:18

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