Vortex identification and evolution of a jet in cross flow based on Rortex

Jie min Zhan; Zhi ya Chen; Chi wai Li; Wen qing Hu; Yu tian Li

doi:10.1080/19942060.2020.1816496

Vortex identification and evolution of a jet in cross flow based on Rortex

Jie min Zhan, Zhi ya Chen, Chi wai Li, Wen qing Hu, Yu tian Li

Research output: Journal article publication › Journal article › Academic research › peer-review

16 Citations (Scopus)

Abstract

Jet in cross flow is an important issue in engineering practice, for example, it is used to improve turbine efficiency in film cooling. In this study, the large eddy simulation and the spectrum analysis are employed to analyze the vortices in a jet in cross flow. The results show that the Rortex method more accurately identifies the vortex structures than other methods. In the analysis of the evolution of the spatial vortex structures, it is affirmed that the spectrum analysis using the Rortex value can effectively identify the characteristic vortex structures in a jet in cross flow.

Original language	English
Pages (from-to)	1237-1250
Number of pages	14
Journal	Engineering Applications of Computational Fluid Mechanics
Volume	14
Issue number	1
DOIs	https://doi.org/10.1080/19942060.2020.1816496
Publication status	Published - 1 Jan 2020

Keywords

dominant frequency
jet in cross flow
Rortex
spectrum analysis
Vortex

ASJC Scopus subject areas

General Computer Science
Modelling and Simulation

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10.1080/19942060.2020.1816496

http://hdl.handle.net/10397/88664

Cite this

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abstract = "Jet in cross flow is an important issue in engineering practice, for example, it is used to improve turbine efficiency in film cooling. In this study, the large eddy simulation and the spectrum analysis are employed to analyze the vortices in a jet in cross flow. The results show that the Rortex method more accurately identifies the vortex structures than other methods. In the analysis of the evolution of the spatial vortex structures, it is affirmed that the spectrum analysis using the Rortex value can effectively identify the characteristic vortex structures in a jet in cross flow.",

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AU - Zhan, Jie min

AU - Chen, Zhi ya

AU - Li, Chi wai

AU - Hu, Wen qing

AU - Li, Yu tian

PY - 2020/1/1

Y1 - 2020/1/1

N2 - Jet in cross flow is an important issue in engineering practice, for example, it is used to improve turbine efficiency in film cooling. In this study, the large eddy simulation and the spectrum analysis are employed to analyze the vortices in a jet in cross flow. The results show that the Rortex method more accurately identifies the vortex structures than other methods. In the analysis of the evolution of the spatial vortex structures, it is affirmed that the spectrum analysis using the Rortex value can effectively identify the characteristic vortex structures in a jet in cross flow.

AB - Jet in cross flow is an important issue in engineering practice, for example, it is used to improve turbine efficiency in film cooling. In this study, the large eddy simulation and the spectrum analysis are employed to analyze the vortices in a jet in cross flow. The results show that the Rortex method more accurately identifies the vortex structures than other methods. In the analysis of the evolution of the spatial vortex structures, it is affirmed that the spectrum analysis using the Rortex value can effectively identify the characteristic vortex structures in a jet in cross flow.

KW - dominant frequency

KW - jet in cross flow

KW - Rortex

KW - spectrum analysis

KW - Vortex

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Vortex identification and evolution of a jet in cross flow based on Rortex

Abstract

Keywords

ASJC Scopus subject areas

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