Ultra-efficient and parameter-free computation of submicron thermal transport with phonon Boltzmann transport equation.

ABSTRACT: Understanding thermal transport at the submicron scale is crucial for engineering applications, especially in the thermal management of electronics and tailoring the thermal conductivity of thermoelectric materials. At the submicron scale, the macroscopic heat diffusion equation is no longer valid and the phonon Boltzmann transport equation (BTE) becomes the governing equation for thermal transport. However, previous thermal simulations based on the phonon BTE have two main limitations: relying on empirical parameters and prohibitive computational costs. Therefore, the phonon BTE is commonly used for qualitatively studying the non-Fourier thermal transport phenomena of toy problems. In this work, we demonstrate an ultra-efficient and parameter-free computational method of the phonon BTE to

SUBMITTER: Hu Y 

PROVIDER: S-EPMC11330117 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature