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Experimental Aspects of PIV Measurements of Transonic Flow Fields and their Benefit for the Optimization of Gas Turbines

Raffel, M. and Höfer, H. and Kost, F. and Willert, C. and Kompenhans, J. (1996) Experimental Aspects of PIV Measurements of Transonic Flow Fields and their Benefit for the Optimization of Gas Turbines. In: Proc. Eighth International Symposium on Applications of Laser Techniques to Fluid Mechanics, 28.1.1-28.1.10. Eighth Int. Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, July 1996.

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Abstract

Reduction of fuel consumption and CO2 emission are two main objectives in gas turbine research. This can be achieved by further increasing operating temperatures. However, higher gas temperatures require new materials and/or internal cooling of turbine blades due to high mechanical loads in high pressure stages of gas turbines, trailing edges of turbine blades can not be built asdesired for reduction of viscous losses. The design of thin turbine blades is additionally complicated by the required integration of cooling flow. The wake of thick trailing edges causes significant losses especially in transonic flows. Knowledge of the interaction between the flow field around the trailing edge and the mass flow rate of the trailing edge ejection of cooling air is therefore of great importance. The goals of our investigations were: Determination of the structure of the wake and of the trailing edge shock system.

Item URL in elib:https://elib.dlr.de/37469/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1996,
Title:Experimental Aspects of PIV Measurements of Transonic Flow Fields and their Benefit for the Optimization of Gas Turbines
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Raffel, M.UNSPECIFIEDUNSPECIFIED
Höfer, H.UNSPECIFIEDUNSPECIFIED
Kost, F.UNSPECIFIEDUNSPECIFIED
Willert, C.UNSPECIFIEDUNSPECIFIED
Kompenhans, J.UNSPECIFIEDUNSPECIFIED
Date:1996
Journal or Publication Title:Proc. Eighth International Symposium on Applications of Laser Techniques to Fluid Mechanics
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:28.1.1-28.1.10
Status:Published
Keywords:Gas Turbines, Turbine Blades, Integration of Cooling Flow, Trailing Edge, Particle Image Velocimetry
Event Title:Eighth Int. Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, July 1996
HGF - Research field:Energy
HGF - Program:other
HGF - Program Themes:E - no assignment
DLR - Research area:Energy
DLR - Program:E - no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik
Deposited By: DLR-Beauftragter, elib
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:08

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