Effect of air supply into vortex flow of liquid with various swirl parameters

Sergey V. Alekseenko, Sergey I. Shtork, Roman R. Yusupov

Research output: Contribution to journalArticle

Abstract

This work deals with the study of the gas phase effect on integral characteristics of a swirling two-phase flow with a precessing vortex core. The formation conditions of a precessing vortex filament were modeled in hydrodynamic vortex chambers with a sudden expansion, where the flow was swirled by means of the vane and tangential swirlers. Experimental dependences of the frequency of vortex core precession and total pressure drop in the vortex chambers on gas content are obtained for different degrees of flow swirl. The studies have shown that the main effect of air supply on the flow parameters is associated with separation of the lighter gas phase toward the vortex core center and formation of a gas core along the vortex axis. The effective separation of air from liquid into the gas core is particularly confirmed by the fact that the measured data are well generalized in dimensionless variables based on the liquid phase parameters.

Original languageEnglish
Pages (from-to)129-138
Number of pages10
JournalInterfacial Phenomena and Heat Transfer
Volume6
Issue number2
DOIs
Publication statusPublished - 1 Jan 2018
Externally publishedYes

Keywords

  • Precessing vortex core (PVC)
  • Swirl parameter
  • Swirler
  • Swirling two-phase flow
  • Vortex chamber

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Fluid Flow and Transfer Processes

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