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

Autor:	Jie-min Zhan, Zhi-ya Chen, Chi-wai Li, Wen-qing Hu, Yu-tian Li
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	vortex rortex spectrum analysis dominant frequency jet in cross flow Engineering (General). Civil engineering (General) TA1-2040
Zdroj:	Engineering Applications of Computational Fluid Mechanics, Vol 14, Iss 1, Pp 1237-1250 (2020)
Druh dokumentu:	article
ISSN:	1994-2060 1997-003X 19942060
DOI:	10.1080/19942060.2020.1816496
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/aa11b28ec5b6467d9c7af5cb41b70fa1 Zobrazit plný text záznamu View record in DOAJ