[HTML][HTML] Heat equations beyond Fourier: From heat waves to thermal metamaterials

R Kovács - Physics Reports, 2024 - Elsevier
In the past few decades, numerous heat conduction models extending beyond Fourier's
have been developed to account for large gradients, fast phenomena, wave propagation …

Phonon hydrodynamics in crystalline materials

K Ghosh, A Kusiak, JL Battaglia - Journal of Physics: Condensed …, 2022 - iopscience.iop.org
Phonon hydrodynamics is an exotic phonon transport phenomenon that challenges the
conventional understanding of diffusive phonon scattering in crystalline solids. It features a …

A graphite thermal Tesla valve driven by hydrodynamic phonon transport

X Huang, R Anufriev, L Jalabert, K Watanabe… - Nature, 2024 - nature.com
The Tesla valve benefits the rectification of fluid flow in microfluidic systems,,,,–and inspires
researchers to design modern solid-state electronic and thermal rectifiers referring to fluid …

Tunable thermal conduction force without macroscopic temperature gradients

H Tan, Y Qiu, L Xu, J Huang - Physical Review E, 2023 - APS
Ubiquitous thermal conduction makes its force effect particularly important in diverse fields,
such as electronic engineering and biochemistry. However, regulating thermal conduction …

Observation of second sound in graphite over 200 K

Z Ding, K Chen, B Song, J Shin, AA Maznev… - Nature …, 2022 - nature.com
Second sound refers to the phenomenon of heat propagation as temperature waves in the
phonon hydrodynamic transport regime. We directly observe second sound in graphite at …

Observation of phonon Poiseuille flow in isotopically purified graphite ribbons

X Huang, Y Guo, Y Wu, S Masubuchi… - Nature …, 2023 - nature.com
In recent times, the unique collective transport physics of phonon hydrodynamics motivates
theoreticians and experimentalists to explore it in micro-and nanoscale and at elevated …

Design rules for polymer blends with high thermoelectric performance

O Zapata‐Arteaga, S Marina, G Zuo… - Advanced Energy …, 2022 - Wiley Online Library
A combinatorial study of the effect of in‐mixing of various guests on the thermoelectric
properties of the host workhorse polymer poly [2, 5‐bis (3‐tetradecylthiophen‐2‐yl) thieno …

Discrete heat conduction equation: Dispersion analysis and continuous limits

SL Sobolev - International Journal of Heat and Mass Transfer, 2024 - Elsevier
The dispersion relation in ω-k space has been derived and analyzed for discrete heat
conduction equation (DE). The DE is inherently nonlocal both in time and space and can be …

Analytical Green's function of the multidimensional Boltzmann transport equation for modeling hydrodynamic second sound

X Qian, C Zhang, TH Liu, R Yang - Physical Review B, 2025 - APS
Hydrodynamic second sound can be generated by heat pulses when the phonon-phonon
interaction is dominantly momentum conserving, and the propagation of the temperature …

Atomistic evidence of hydrodynamic heat transfer in nanowires

P Desmarchelier, A Beardo, FX Alvarez… - International Journal of …, 2022 - Elsevier
With wave-packet propagation simulations and heat flux estimation via molecular dynamics,
we show that the heat flux radial distribution in silicon nanowires can be described by a …