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Journal of Applied Fluid Mechanics، جلد ۱۴، شماره ۶، صفحات ۱۸۳۹-۱۸۵۰
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عنوان انگلیسی Adjoint Optimization Method for Head Shape of High- ‎Speed Maglev Train
چکیده انگلیسی مقاله 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%‎‎.
کلیدواژه‌های انگلیسی مقاله Maglev, Aerodynamic Drag, Adjoint method, Optimization.‎
نویسندگان مقاله H. C. Li |
Key Laboratory of Traffic Safety on Track of Ministry of Education, Central South University, Changsha, ‎Hunan 410075, China

Z. M. Yang |
Key Laboratory of Traffic Safety on Track of Ministry of Education, Central South University, Changsha, Hunan 410075, China

L. Zhang |
Key Laboratory of Traffic Safety on Track of Ministry of Education, Central South University, Changsha, Hunan 410075, China

O. Benbouaziz |
Laboratory of Advanced Design and Modeling of Mechanical Systems and Thermo-Fluids (CMASMTF), ‎Department of Mechanical Engineering, FSSA, Oum el Bouaghi University, Algeria

نشانی اینترنتی https://www.jafmonline.net/article_1890_e7fe86315992603eccadb9cc85fe824c.pdf
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