Two spiral vortex breakdowns in confined swirling flow

M. Tsoy; S. Skripkin; I. Litvinov

doi:10.1063/5.0154809

Two spiral vortex breakdowns in confined swirling flow

M. Tsoy, S. Skripkin, I. Litvinov

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	061704
Journal	Physics of Fluids
Volume	35
Issue number	6
DOIs	https://doi.org/10.1063/5.0154809
State	Published - 1 Jun 2023
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1063/5.0154809

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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.",

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AU - Litvinov, I.

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N2 - 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.

AB - 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.

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M3 - مقالة

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JO - Physics of Fluids

JF - Physics of Fluids

IS - 6

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Two spiral vortex breakdowns in confined swirling flow

Abstract

All Science Journal Classification (ASJC) codes

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