Adjoint Optimization Method for Head Shape of High- ‎Speed Maglev Train

The head shape of a high-speed maglev train was optimized in this study, based on the adjoint method, ‎and the aerodynamic drag of four optimized train models were simulated and compared using different ‎control point generation methods. The effectiveness of using the adjoint method to develop a ‎co...

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Autores principales:	H. C. Li, Z. M. Yang, L. Zhang, R. Li
Formato:	article
Lenguaje:	EN
Publicado:	Isfahan University of Technology 2021
Materias:	maglev; aerodynamic drag; adjoint method; optimization.‎ Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/ad04a59d85664efbbab2cda61d1e910c
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id	oai:doaj.org-article:ad04a59d85664efbbab2cda61d1e910c
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spelling	oai:doaj.org-article:ad04a59d85664efbbab2cda61d1e910c2021-11-13T07:03:04ZAdjoint Optimization Method for Head Shape of High- ‎Speed Maglev Train1735-3572https://doaj.org/article/ad04a59d85664efbbab2cda61d1e910c2021-01-01T00:00:00Zhttp://jafmonline.net/JournalArchive/download?file_ID=57326&issue_ID=1015https://doaj.org/toc/1735-3572The head shape of a high-speed maglev train was optimized in this study, based on the adjoint method, ‎and the aerodynamic drag of four optimized train models were simulated and compared using different ‎control point generation methods. The effectiveness of using the adjoint method to develop a ‎compressible model for a maglev train was verified. The results show that the adjoint matrix optimization ‎method can quickly and effectively capture the shape characteristics of the train head that are sensitive to ‎aerodynamic resistance. When the design variables of the head are not defined separately, the grid control ‎point set and surface control point set can be used to carry out the adjoint closed-loop optimization of the ‎train head shape, and the exchange control point generation method can be used to perform closed-loop ‎optimization. The results of a numerical simulation show that the optimized train model reduces ‎aerodynamic resistance by approximately 4.8%‎‎.H. C. LiZ. M. YangL. ZhangR. LiIsfahan University of Technology articlemaglev; aerodynamic drag; adjoint method; optimization.‎Mechanical engineering and machineryTJ1-1570ENJournal of Applied Fluid Mechanics, Vol 14, Iss 6, Pp 1839-1850 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	maglev; aerodynamic drag; adjoint method; optimization.‎ Mechanical engineering and machinery TJ1-1570
spellingShingle	maglev; aerodynamic drag; adjoint method; optimization.‎ Mechanical engineering and machinery TJ1-1570 H. C. Li Z. M. Yang L. Zhang R. Li Adjoint Optimization Method for Head Shape of High- ‎Speed Maglev Train
description	The head shape of a high-speed maglev train was optimized in this study, based on the adjoint method, ‎and the aerodynamic drag of four optimized train models were simulated and compared using different ‎control point generation methods. The effectiveness of using the adjoint method to develop a ‎compressible model for a maglev train was verified. The results show that the adjoint matrix optimization ‎method can quickly and effectively capture the shape characteristics of the train head that are sensitive to ‎aerodynamic resistance. When the design variables of the head are not defined separately, the grid control ‎point set and surface control point set can be used to carry out the adjoint closed-loop optimization of the ‎train head shape, and the exchange control point generation method can be used to perform closed-loop ‎optimization. The results of a numerical simulation show that the optimized train model reduces ‎aerodynamic resistance by approximately 4.8%‎‎.
format	article
author	H. C. Li Z. M. Yang L. Zhang R. Li
author_facet	H. C. Li Z. M. Yang L. Zhang R. Li
author_sort	H. C. Li
title	Adjoint Optimization Method for Head Shape of High- ‎Speed Maglev Train
title_short	Adjoint Optimization Method for Head Shape of High- ‎Speed Maglev Train
title_full	Adjoint Optimization Method for Head Shape of High- ‎Speed Maglev Train
title_fullStr	Adjoint Optimization Method for Head Shape of High- ‎Speed Maglev Train
title_full_unstemmed	Adjoint Optimization Method for Head Shape of High- ‎Speed Maglev Train
title_sort	adjoint optimization method for head shape of high- ‎speed maglev train
publisher	Isfahan University of Technology
publishDate	2021
url	https://doaj.org/article/ad04a59d85664efbbab2cda61d1e910c
work_keys_str_mv	AT hcli adjointoptimizationmethodforheadshapeofhighspeedmaglevtrain AT zmyang adjointoptimizationmethodforheadshapeofhighspeedmaglevtrain AT lzhang adjointoptimizationmethodforheadshapeofhighspeedmaglevtrain AT rli adjointoptimizationmethodforheadshapeofhighspeedmaglevtrain
_version_	1718430275001647104

Adjoint Optimization Method for Head Shape of High- ‎Speed Maglev Train

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