Application of Particle Image Velocimetry to a Transonic Centrifugal Compressor
Voges, Melanie and Beversdorff, Manfred and Willert, Chris and Krain, Hartmut (2007) Application of Particle Image Velocimetry to a Transonic Centrifugal Compressor. Experiments in Fluids. Springer Verlag. DOI: 10.1007/s00348-007-0279-1.
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As part of an ongoing research project the performance and internal flow field of a high pressure ratio centrifugal compressor is being investigated. Based on previous, primarily, point-wise laser-optical measurements the compressor was redesigned and resulted in an improved impeller and diffuser with a single-stage pressure ratio of 6:1 at 50,000 rpm. Current research activities involve the use of Particle Image Velocimetry (PIV) to analyze and further improve the understanding of the complex flow phenomena inside the vaned diffuser given the capability of PIV of capturing spatial structures. The study includes phase-resolved measurements of the flow inside a diffuser vane passage with respect to the impeller blade position. Both, instantaneous and phase-averaged velocity fields are presented. The flow field results obtained by PIV are to be used for future validation of the related CFD calculations, which in turn are expected to lead to further improvements in compressor performance. In addition, the potential of stereo PIV for this type of turbomachinery application could be successfully demonstrated.
|Title:||Application of Particle Image Velocimetry to a Transonic Centrifugal Compressor|
|Journal or Publication Title:||Experiments in Fluids|
|In ISI Web of Science:||Yes|
|Keywords:||PIV, turbomachinery, centrifugal compressor, transonic, vaned diffuser|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L ER - Engine Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L ER - Engine Research|
|DLR - Research theme (Project):||L - Virtual Engine and Validation Methods|
|Institutes and Institutions:||Institute of Propulsion Technology|
Institute of Propulsion Technology > Engine Measurement Systems
|Deposited By:||Melanie Voges|
|Deposited On:||12 Jun 2007|
|Last Modified:||27 Apr 2009 13:47|
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