Applying phase averaging technique to analysis of unsteady twin vortex structure observed in tangential vortex chamber

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Abstract

This paper is devoted to experimental investigation of formation of precessing vortices pair in a vortex chamber with a cylindrical working area. Flow structure was registered by means of a high-speed visualization technique. Quantitative measurements characterizing the vortex properties were carried out using a 2D particle image velocimetry (PIV) technique synchronized with wall pressure measurements. The results show that two symmetrical precessing helical vortices are present downstream of the tangential nozzles.The phase- averaged analysis confirms the presence of large-scale twin vortex structure that visualized by small air bubbles dissolved in water.

Original languageEnglish
Article number012042
Number of pages5
JournalJournal of Physics: Conference Series
Volume1382
Issue number1
DOIs
Publication statusPublished - 28 Nov 2019
Event3th Siberian Thermophysical Seminar, STS 2019 - Novosibirsk, Russian Federation
Duration: 27 Aug 201929 Aug 2019

Keywords

  • CORE

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