Two spiral vortex breakdowns in confined swirling flow-Reference-Cited by-同舟云学术

Two spiral vortex breakdowns in confined swirling flow

Published:2023-06-01 Issue:6 Volume:35 Page:
ISSN:1070-6631
Container-title:Physics of Fluids
language:en
Short-container-title:

Author:

Tsoy M.¹^ORCID,Skripkin S.²^ORCID,Litvinov I.²

Affiliation:

1. Kutateladze Institute of Thermophysics 1 , Novosibirsk, Russia

2. Novosibirsk State University 2 , Novosibirsk, Russia

Abstract

Two different scenarios of spiral vortex breakdown are observed experimentally and further investigated numerically in the swirl flow into a conical diffuser. The primary spiral vortex breakdown is observed near the inlet of the conical diffuser in cases of the cone angle β>3°. The secondary spiral vortex breakdown occurs at the exit of the cone at β≤3°. Also, the coexistence of two spiral vortices is observed. For the first time, we have visualized and explained the reasons of these observations.

Funder

Russian Science Foundation

Publisher

AIP Publishing

Subject

Condensed Matter Physics,Fluid Flow and Transfer Processes,Mechanics of Materials,Computational Mechanics,Mechanical Engineering

Link

https://pubs.aip.org/aip/pof/article-pdf/doi/10.1063/5.0154809/17978473/061704_1_5.0154809.pdf

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