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Numerical Optimization on Aircraft Wake Vortex Decay Enhancement 飞机机翼涡流衰减增强的数值优化

Aerospace Research Communications Pub Date : 2024-01-24 DOI: 10.3389/arc.2024.12444

Ziming Xu, Dong Li

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引用次数: 0

The Thermal Conductivity Coefficient of a Square Thermal Invisibility Cloak Cell and Its Application in Periodic Plate 方形热隐形衣单元的导热系数及其在周期板中的应用

Aerospace Research Communications Pub Date : 2023-11-20 DOI: 10.3389/arc.2023.12099

Yanyan Sun, Y. Chai, Xiongwei Yang, Yueming Li

{"title":"The Thermal Conductivity Coefficient of a Square Thermal Invisibility Cloak Cell and Its Application in Periodic Plate","authors":"Yanyan Sun, Y. Chai, Xiongwei Yang, Yueming Li","doi":"10.3389/arc.2023.12099","DOIUrl":"https://doi.org/10.3389/arc.2023.12099","url":null,"abstract":"In this paper, the thermal conductivities of the square thermal invisibility cloak are constructed in two ways. One is the direct method, another is the rotation matrix method. The thermal conductivity coefficients obtained by the two methods are the same. The cloud map of thermal conductivity coefficient of the thermal cloak is drawn, which can help us understand more intuitively how the thermal invisibility cloak works. Besides, to manipulate heat flow in a larger area, the cloaks are arranged periodically by introducing the position parameters into the calculation of the thermal conductivity coefficient of the thermal invisibility cloak. The heat insulation function of both the single thermal cloak and the thermal cloak periodic plate are tested under different heat boundary conditions using COMSOL Multiphysics. For different heat boundary conditions, heat flux direction of the simulation result is given. The results show that both the single thermal cloak and the thermal cloak periodic plate have the function of avoiding heat flow under different heat boundary conditions. The heat fluxes travel around the inner domain with good thermal stealth effect.","PeriodicalId":502239,"journal":{"name":"Aerospace Research Communications","volume":"2 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139256358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0