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Digital PIV Measurements in the Diffuser of a High Speed Centrifugal CompressorParticle Imaging Velocimetry (PIV) is a powerful measurement technique which can be used as an alternative or complementary approach to Laser Doppler Velocimetry (LDV) in a wide range of research applications. PIV data are measured simultaneously at multiple points in space, which enables the investigation of the non-stationary spatial structures typically encountered in turbomachinery. Obtaining ample optical access, sufficiently high seed particle concentrations and accurate synchronization of image acquisition relative to impeller position are the most formidable tasks in the successful implementation of PIV in turbomachinery. Preliminary results from the successful application of the standard 2-D digital PIV technique in the diffuser of a high speed centrifugal compressor are presented. Instantaneous flow. measurements were also obtained during compressor surge.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Wernet, Mark P.
(NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
August 18, 2013
Publication Date
January 1, 1998
Subject Category
Mechanical Engineering
Report/Patent Number
AIAA Paper 98-2777
Meeting Information
Meeting: Advanced Measurement and Ground Testing Technology
Location: Albuquerque, NM
Country: United States
Start Date: June 15, 1998
End Date: June 18, 1998
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
PROJECT: RTOP 519-20-53
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