A new particle image velocimetry technique for turbomachinery applications

Sayantan Bhattacharya, Reid A. Berdanier, Pavlos P. Vlachos, Nicole L. Key

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Nonintrusive measurement techniques such as particle image velocimetry (PIV) are growing in both capability and utility for turbomachinery applications. However, the restrictive optical access afforded by multistage research compressors typically requires the use of a periscope probe to introduce the laser sheet for measurements in a rotor passage. This paper demonstrates the capability to perform three-dimensional PIV in a multistage compressor without the need for intrusive optical probes and requiring only line-of-sight optical access. The results collected from the embedded second stage of a three-stage axial compressor highlight the rotor tip leakage flow, and PIV measurements are qualitatively compared with high-frequency response piezoresistive pressure measurements to assess the tip leakage flow identification.

Original languageEnglish (US)
Article number124501
JournalJournal of Turbomachinery
Volume138
Issue number12
DOIs
StatePublished - Dec 1 2016

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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