[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 …

Lagging heat models in thermodynamics and bioheat transfer: a critical review

Z Shomali, R Kovács, P Ván, IV Kudinov… - Continuum Mechanics …, 2022 - Springer
The accuracy of the classical heat conduction model, known as Fourier's law, is highly
questioned, dealing with the micro-and nanosystems and biological tissues. In other words …

A peridynamic model for non-Fourier heat transfer in orthotropic plate with uninsulated cracks

Z Wen, C Hou, M Zhao, X Wan - Applied Mathematical Modelling, 2023 - Elsevier
In this paper, the transient temperature response of a cracked plate under thermal shock is
investigated. To eliminate the problems caused by the assumption of infinite heat …

Four spacetime dimensional simulation of rheological waves in solids and the merits of thermodynamics

Á Pozsár, M Szücs, R Kovács, T Fülöp - Entropy, 2020 - mdpi.com
The recent results attained from a thermodynamically conceived numerical scheme applied
on wave propagation in viscoelastic/rheological solids are generalized here, both in the …

Variational principles and nonequilibrium thermodynamics

P Ván, R Kovács - … Transactions of the Royal Society A, 2020 - royalsocietypublishing.org
Variational principles play a fundamental role in deriving the evolution equations of physics.
They work well in the case of non-dissipative evolution, but for dissipative systems, the …

Thermodynamically extended symplectic numerical simulation of viscoelastic, thermal expansion and heat conduction phenomena in solids

DM Takács, Á Pozsár, T Fülöp - Continuum Mechanics and …, 2024 - Springer
Symplectic numerical schemes for reversible dynamical systems predict the solution reliably
over large times as well, and are a good starting point for extension to schemes for …

[HTML][HTML] Nonlinear thermal analysis of two-dimensional materials with memory

CF Munafò, P Rogolino, R Kovács - International Journal of Heat and Mass …, 2024 - Elsevier
A nonlinear hyperbolic heat transport equation has been proposed based on the Cattaneo
model without mechanical effects. We analyze the two-dimensional Maxwell-Cattaneo …

Open mathematical aspects of continuum thermodynamics: Hyperbolicity, boundaries and nonlinearities

M Szücs, R Kovács, S Simić - Symmetry, 2020 - mdpi.com
Thermodynamics is continuously spreading in the engineering practice, which is especially
true for non-equilibrium models in continuum problems. Although there are concepts and …

New perspectives for modelling ballistic-diffusive heat conduction

G Balassa, P Rogolino, Á Rieth, R Kovács - Continuum Mechanics and …, 2021 - Springer
Among the three heat conduction modes (diffusive, second sound, and ballistic
propagation), the ballistic one is the most difficult to model. In the present paper, we discuss …

Improving the accuracy of the Newmark method through backward error analysis

DM Takács, T Fülöp - arXiv preprint arXiv:2403.02029, 2024 - arxiv.org
We use backward error analysis for differential equations to obtain modified or distorted
equations describing the behaviour of the Newmark scheme applied to the transient …