An experimental investigation of the interaction between a pair of precessing vortices in a tangential vortex chamber
SV Dremov, SI Shtork, SG Skripkin… - Journal of Physics …, 2016 - iopscience.iop.org
SV Dremov, SI Shtork, SG Skripkin, IK Kabardin
Journal of Physics: Conference Series, 2016•iopscience.iop.orgThis paper is devoted to experimental investigation of the interaction between the pair of
precessing vortices in a tangential vortex chamber. The test section was the tangential
vortex chamber with a cylindrical working area. The liquid was tangentially fed into the
chamber through 12 rectangular nozzles. The swirl parameter varied in the range 0÷ 6.6,
and the Reynolds number varied within 6000÷ 52000. On the basis of visualization materials
the dependence of the precession frequency of the system of two vortices was obtained. For …
precessing vortices in a tangential vortex chamber. The test section was the tangential
vortex chamber with a cylindrical working area. The liquid was tangentially fed into the
chamber through 12 rectangular nozzles. The swirl parameter varied in the range 0÷ 6.6,
and the Reynolds number varied within 6000÷ 52000. On the basis of visualization materials
the dependence of the precession frequency of the system of two vortices was obtained. For …
Abstract
This paper is devoted to experimental investigation of the interaction between the pair of precessing vortices in a tangential vortex chamber. The test section was the tangential vortex chamber with a cylindrical working area. The liquid was tangentially fed into the chamber through 12 rectangular nozzles. The swirl parameter varied in the range 0÷ 6.6, and the Reynolds number varied within 6000÷ 52000. On the basis of visualization materials the dependence of the precession frequency of the system of two vortices was obtained. For the quantitative investigation the optical methods of laser Doppler anemometry (LDA) and the Particle Image Velocimetry (PIV) were used. Information about vortices and recirculation zones was obtained from the optical measurements.
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