文献类型：期刊文献

英文题名：Convective thermal cloaks with homogeneous and isotropic parameters and drag-free characteristics for viscous potential flows

作者：Yao, Nengzhi[1];Wang, Hao[1];Wang, Bin[1];Wang, Xuesheng[1];Huang, Jiping[2,3]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Fudan Univ, Dept Phys, State Key Lab Surface Phys, Shanghai 200438, Peoples R China;[3]Fudan Univ, Key Lab Micro & Nano Photon Struct MOE, Shanghai 200438, Peoples R China

年份：2022

卷号：25

期号：11

外文期刊名：ISCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000891298800007)】；

基金：ACKNOWLEDGMENTS This work is supported by Shanghai Science and Technology Development Funds (Grant No. 22YF1410600) , by the National Natural Science Foundation of China (Grants No. 12205102, No. 11725521 and No. 12035004) , and by the Science and Technology Commission of Shanghai Municipality (Grant No. 20JC1414700) .

语种：英文

摘要：Although convective thermal cloaking has been advanced significantly, the majority of related researches have concentrated on creeping viscous potential flows. Here, we consider convective thermal cloaking works in non-creeping viscous potential flows, and propose a combination of the separation of variables method and the equivalent-medium integral method to analytically deduce the parameters of convective thermal cloaks with isotropic-homogeneous dynamic viscosity and thermal conductivity. Through numerical simulation, we demonstrate the cloaks can hide the object from thermo-hydrodynamic fields. Besides, by comparing the drag force cloaks bear in cloak case and the objects bear in object-existent case, we find convective thermal cloaks can considerably reduce the drag force, which appears drag-free characteristics. Finally, it is our hope that these developed methods can reduce the difficulties of metadevices fabrications, promote the development of drag reduction technology under higher Reynolds number, and shed light on the control of other multi-physics systems.