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Non-Fourier heat conduction in a hollow sphere with periodic surface heat flux
International Communications in Heat and Mass Transfer, 2009Presented is the analysis of non-Fourier effect in a hollow sphere exposed to a periodic boundary heat flux. The problem is studied by deriving an analytical solution of the hyperbolic heat conduction equation. Using the obtained analytical expression, the temperature profiles at outer and inner surfaces of the sphere are evaluated for various thermal ...
Amin Moosaie
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Non-Fourier heat conduction in IC chip
[1992 Proceedings] Intersociety Conference on Thermal Phenomena in Electronic Systems, 1995Instead of the classic Fourier equation based on diffusion, a hyperbolic equation based on a wave model has been used to predict the rapid transient heat conduction in IC chips. The peak temperature, spatial difference, and time variation of temperature, which are critical to thermal reliability of the chip, are given and compared with that obtained ...
Zeng-Yuan Guo, Yun-Sheng Xu
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Non-Fourier heat conductions in nanomaterials
Journal of Applied Physics, 2011We study the non-Fourier heat conductions in nanomaterials based on the thermomass theory. For the transient heat conduction in a one-dimensional nanomaterial with a low-temperature step at both ends, the temperature response predicted by the present model is consistent with those by the existing theoretical models for small temperature steps. However,
Moran Wang, Nuo Yang, Zeng-Yuan Guo
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Inverse investigation of non-Fourier heat conduction in tissue
Journal of Thermal Biology, 2016This paper attempts to describe the heat conduction in tissue using the dual-phase-lag mode. Evaluating the thermo-physical parameters is one of the ways to certify the thermal behavior. As a result, the paper simultaneously and inversely estimates the values of τq, τT and α for bologna based on the dual-phase-lag mode with the measurement data in the ...
Kuo-Chi, Liu +2 more
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Non-Fourier Heat Conduction in a Nematic Mesophase
Molecular Crystals and Liquid Crystals, 1973A brief discussion of non-linear (non-Fourier) heat conduction is given. Recent experimental data on nermatic p-anisylidene p-aminophenyl-acetate are also presented to confirm the earlier reported ...
Varagur S. V. Rajan, Jules J. C. Picot
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Non-Fourier Heat Conduction in Carbon Nanotubes
ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3, 2009Fourier’s law is a phenomenological law to describe the heat transfer process. Although it has been widely used in a variety of engineering application areas, it is still questionable to reveal the physical essence of heat transfer. In order to describe the heat transfer phenomena universally, Guo has developed a general heat conduction law based on ...
Hai-Dong Wang +2 more
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Non-Fourier heat conduction in a plane slab with prescribed boundary heat flux
Heat and Mass Transfer, 1996The non-stationary heat conduction in an infinitely wide plane slab with a prescribed boundary heat flux is studied. An arbitrary time dependent boundary heat flux is considered and a non-vanishing thermal relaxation time is assumed. The temperature and the heat flux density distributions are determined analytically by employing Cattaneo-Vernotte's ...
Barletta A., Zanchini E.
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Non-Fourier heat conduction effect in nanoscale FinFET and GAAFET Transistor
2021 18th International Multi-Conference on Systems, Signals & Devices (SSD), 2021Modern transistors such as FinFETs and GAAFET suffer from excessive heat confinement due to their small size with limited paths to the thermal ambient. This, results in device self-heating, which can reduce speed, increase leakage, and accelerate aging.
Maissa Belkhiria +2 more
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Non-Fourier phonon heat conduction at the microscale and nanoscale
Nature Reviews Physics, 2021The description of phonon heat conduction has typically been based on Fourier diffusion theory. However, over the past three decades, a host of interesting phonon transport phenomena beyond the Fourier diffusion picture have drawn much attention. Although most of the studies focused on classical size effects that lead to reduced thermal conductivity ...
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Non-Fourier heat conduction/convection in moving medium
International Journal of Thermal Sciences, 2018Abstract Non-Fourier one-dimensional unsteady heat conduction in a moving medium is investigated by using the Cattaneo-Vernotte- Christov-Jordan (CVCJ) heat flux model for medium speeds less than (sub-critical), equal to (critical), and greater than (super-critical) the thermal wave speed.
S. Han, J. Peddieson
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