Year: 2025
Type: article
Abstract: Traditional convective metamaterials typically focus exclusively on cloaking functionality, limiting their applicability. Here, we propose a dual-function convective sensor embedded in porous materials that can achieve both detecting and cloaking functions. The device ensures accurate sensing by preserving the internal core consistent with the background, while simultaneously suppressing external disturbances to achieve cloaking. Through the analytical framework of scattering cancellation, the design enables coordinated tuning of both permeability and thermal conductivity in forced convection. Numerical analyses confirm that the sensor retains stable performance across different conditions within the theoretical framework. We also suggest potential fabrication strategies, such as micro-structured designs combined with additive manufacturing. This dual-function approach significantly broadens the scope of applications for convective metamaterial and opens pathways for innovations such as lab-on-chip devices and thermal control systems.
Source: Journal of Applied Physics
DOI: 10.1063/5.0300804
Authors: Wenyi Ma, Huolei Feng, Yushan Ni
Institutions: Fudan University, State Key Laboratory of Surface Physics
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,500
Award: G8127847446
OpenAlex ID: W4416505577