Results 21 to 30 of about 26,154 (249)

Non-Fourier Heat Transfer with Phonons and Electrons in a Circular Thin Layer Surrounding a Hot Nanodevice [PDF]

open access: yesEntropy, 2015
A nonlocal model for heat transfer with phonons and electrons is applied to infer the steady-state radial temperature profile in a circular layer surrounding an inner hot component. Such a profile, following by the numerical solution of the heat equation, predicts that the temperature behaves in an anomalous way, since for radial distances from the ...
Vito Cimmelli   +2 more
openaire   +4 more sources

A plausible approach to heat transfer enhancement: non-Fourier heat transfer in fluids under oscillating conditions

open access: yesJournal of Physics Communications, 2018
Efficient and optimal energy transport is one of the present challenges in the physics of many different devices. In this context, the dynamic effective thermal diffusivity of a fluid with a non-Fourier heat conduction law is examined. Considering the simplest description for heat conduction beyond Fourier's law (the Cattaneo-Vernotte equation), an ...
J A del Río   +2 more
openaire   +1 more source

The Non-Stationary Heat Transport inside a Shafted Screw Conveyor Filled with Homogeneous Biomass Heated Electrically

open access: yesEnergies, 2022
The non-stationary heat transfer inside a cylindrical channel of a shafted screw conveyor, electrically heated, and filled with a moving biomass was analyzed.
Stanisław Ledakowicz, Olexa Piddubniak
doaj   +1 more source

Non-Fourier heat transfer at small scales of time and space

open access: yesInternational Journal of Heat and Mass Transfer, 2020
Heat transfer at small spatial and temporal scales presents differences compared to larger scales, where the Fourier law applies with very good representativeness. The best-known deviation concerns the behavior of materials with a very small time constant, where the Fourier law leads to a paradox.
openaire   +4 more sources

Evolution and application of heat transfer theory in supernormal hot working processes:from Fourier heat conduction model to non-Fourier heat conduction model

open access: yesCailiao gongcheng
This paper focuses on the theoretical innovation from Fourier heat conduction to non-Fourier heat conduction and its key application in the field of extreme heat transfer.
ZHAO Ming   +5 more
doaj   +1 more source

Unsteady heat transfer enhancement in Williamson fluid in Darcy-Forchheimer porous medium under non-Fourier condition of heat flux

open access: yesCase Studies in Thermal Engineering, 2021
Non-Newtonian constitutive equations and models for hybrid particles are simultaneously coupled with conservation laws. The energy equation is derived under non-Fourier heat flux condition.
M. Nawaz, M. Adil Sadiq
doaj   +1 more source

Exact and Analytic-Numerical Solutions of Lagging Models of Heat Transfer in a Semi-Infinite Medium

open access: yesAbstract and Applied Analysis, 2013
Different non-Fourier models of heat conduction have been considered in recent years, in a growing area of applications, to model microscale and ultrafast, transient, nonequilibrium responses in heat and mass transfer.
M. A. Castro   +3 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

On doubly stratified chemically reactive flow of Powell–Eyring liquid subject to non-Fourier heat flux theory

open access: yesResults in Physics, 2017
This investigation addresses the chemical reaction and double stratification effects in the flow induced by a nonlinear stretching surface with variable thickness.
T. Hayat   +4 more
doaj   +1 more source

Analytical solution of heat-transfer in central part of tibia bone tissue using non-Fourier heat equation with a laser heat source

open access: yesResults in Engineering, 2023
Hyperbolic heat transfer equation considering a laser heat source is analytically investigated using Laplace transform method to study the temperature distribution in the central part of the tibia bone tissue.
Nima Katirachi
doaj   +1 more source

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