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Recent developments and applications of quantitative planar measuring techniques in turbomachinery components

Roehle, I. und Voigt, P. und Schodl, R. und Willert, C. (2000) Recent developments and applications of quantitative planar measuring techniques in turbomachinery components. Measurements Science & Technology, 11 (11), Seiten 1023-1035.

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Kurzfassung

Concerning the further development of gas turbine engines, advances of the aero-thermodynamic design can be achieved most efficiently by co-operative efforts aimed at the improvement of both the numerical simulation methods and the experimental test and measurement techniques. Rapid development of numerical capability is accompanied with increasing demands on experimental data. In this context significant instrumentation research efforts are being conducted to develop the needed measurement technologies. Because of the need of reduced experimental costs planar measurement techniques have undergone a rapid pace of development. Three newly developed quantitative light sheet techniques utilizing the scattered light of tracer particles are described in this paper. First a Doppler global velocimetry (DGV) system optimized for time-averaged three component velocity measurements is presented. The system which uses a single viewing direction in conjunction with three different illumination direction enables very accurate velocity measurements. Second a quantitative light sheet technique (QLS) for quantitative mass fraction measurements in mixing processes is treated. To apply the technique the inflow of the mixing experiment must consist at least of two separate flows, one of which can be seeded which the other remains unseeded. DGV and QLS results obtained from experimental investigation in a model combuster are presented. Third a method named tracer based shock visualization (TSV) is described which is capable of determining the shape and structure of shock waves in transonic flows by analyzing the sudden increase of flow density across a shock. Results taken in a transonic compressor are presented.

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen: LIDO-Berichtsjahr=2001,
Titel:Recent developments and applications of quantitative planar measuring techniques in turbomachinery components
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Roehle, I.NICHT SPEZIFIZIERT
Voigt, P.NICHT SPEZIFIZIERT
Schodl, R.NICHT SPEZIFIZIERT
Willert, C.NICHT SPEZIFIZIERT
Datum:2000
Erschienen in:Measurements Science & Technology
Referierte Publikation:Ja
In ISI Web of Science:Ja
Band:11
Seitenbereich:Seiten 1023-1035
Status:veröffentlicht
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L TT - Triebwerkstechnologien
DLR - Teilgebiet (Projekt, Vorhaben):NICHT SPEZIFIZIERT
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Antriebstechnik
Hinterlegt von: elib DLR-Beauftragter
Hinterlegt am:16 Sep 2005
Letzte Änderung:06 Jan 2010 13:15

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