Design and Performance Analysis of Blades Based on the Equal–Variable Circulation Method

With the aim of improving the aerodynamic performance of axial turbomachinery, a new type of blade is designed using the equal–variable circulation method. Taking an axial flow fan as the research object, this article describes the development of a new type of turbomachinery by changing the design m...

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Autores principales:	D. Liang, C. Song, S. Liang, S. Wang, Y. Li, Z. Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	axial turbomachinery equal–variable circulation method forward sweep aerodynamic performance blade tip General Works A
Acceso en línea:	https://doaj.org/article/2e6e33b76e6c476fa35eccaf574e19de
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spelling	oai:doaj.org-article:2e6e33b76e6c476fa35eccaf574e19de2021-11-18T06:17:39ZDesign and Performance Analysis of Blades Based on the Equal–Variable Circulation Method2296-598X10.3389/fenrg.2021.790622https://doaj.org/article/2e6e33b76e6c476fa35eccaf574e19de2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenrg.2021.790622/fullhttps://doaj.org/toc/2296-598XWith the aim of improving the aerodynamic performance of axial turbomachinery, a new type of blade is designed using the equal–variable circulation method. Taking an axial flow fan as the research object, this article describes the development of a new type of turbomachinery by changing the design method and producing a blade with forward sweep. The aerodynamic performance of the fan is simulated and compared with the experimental data. The numerical results show that the equal circulation design method improves the aerodynamic performance of the blade roots, while the variable circulation design method enhances the aerodynamic performance of the blade tips. By adopting the equal–variable circulation design method, the total pressure of the experimental fan is increased by about 4%, while the efficiency remains unchanged. Forward-swept blades with an equal–variable circulation design also improve performance over the conventional blades by changing the center-of-gravity stacking line. At low flow rates, the efficiency of the experimental fan can be increased by 7.5%, and the working range of the flow is expanded. Under high flow rates, the restriction of the blade tip on the airflow is decreased and the fluidity is slightly reduced.D. LiangC. SongS. LiangS. WangY. LiZ. ZhouFrontiers Media S.A.articleaxial turbomachineryequal–variable circulation methodforward sweepaerodynamic performanceblade tipGeneral WorksAENFrontiers in Energy Research, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	axial turbomachinery equal–variable circulation method forward sweep aerodynamic performance blade tip General Works A
spellingShingle	axial turbomachinery equal–variable circulation method forward sweep aerodynamic performance blade tip General Works A D. Liang C. Song S. Liang S. Wang Y. Li Z. Zhou Design and Performance Analysis of Blades Based on the Equal–Variable Circulation Method
description	With the aim of improving the aerodynamic performance of axial turbomachinery, a new type of blade is designed using the equal–variable circulation method. Taking an axial flow fan as the research object, this article describes the development of a new type of turbomachinery by changing the design method and producing a blade with forward sweep. The aerodynamic performance of the fan is simulated and compared with the experimental data. The numerical results show that the equal circulation design method improves the aerodynamic performance of the blade roots, while the variable circulation design method enhances the aerodynamic performance of the blade tips. By adopting the equal–variable circulation design method, the total pressure of the experimental fan is increased by about 4%, while the efficiency remains unchanged. Forward-swept blades with an equal–variable circulation design also improve performance over the conventional blades by changing the center-of-gravity stacking line. At low flow rates, the efficiency of the experimental fan can be increased by 7.5%, and the working range of the flow is expanded. Under high flow rates, the restriction of the blade tip on the airflow is decreased and the fluidity is slightly reduced.
format	article
author	D. Liang C. Song S. Liang S. Wang Y. Li Z. Zhou
author_facet	D. Liang C. Song S. Liang S. Wang Y. Li Z. Zhou
author_sort	D. Liang
title	Design and Performance Analysis of Blades Based on the Equal–Variable Circulation Method
title_short	Design and Performance Analysis of Blades Based on the Equal–Variable Circulation Method
title_full	Design and Performance Analysis of Blades Based on the Equal–Variable Circulation Method
title_fullStr	Design and Performance Analysis of Blades Based on the Equal–Variable Circulation Method
title_full_unstemmed	Design and Performance Analysis of Blades Based on the Equal–Variable Circulation Method
title_sort	design and performance analysis of blades based on the equal–variable circulation method
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/2e6e33b76e6c476fa35eccaf574e19de
work_keys_str_mv	AT dliang designandperformanceanalysisofbladesbasedontheequalvariablecirculationmethod AT csong designandperformanceanalysisofbladesbasedontheequalvariablecirculationmethod AT sliang designandperformanceanalysisofbladesbasedontheequalvariablecirculationmethod AT swang designandperformanceanalysisofbladesbasedontheequalvariablecirculationmethod AT yli designandperformanceanalysisofbladesbasedontheequalvariablecirculationmethod AT zzhou designandperformanceanalysisofbladesbasedontheequalvariablecirculationmethod
_version_	1718424468621099008

Design and Performance Analysis of Blades Based on the Equal–Variable Circulation Method

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