Transient Finite-Speed Heat Transfer Influence on Deformation of a Nanoplate with Ultrafast Circular Ring Heating

Article Engineering, Mechanical

The vibration of viscothermoelastic static pre-stress nanobeam based on two-temperature dual-phase-lag heat conduction and subjected to ramp-type heat

Hamdy M. Youssef et al.

Summary: In this study, an analytical mathematical model for calculating the vibration in a viscothermoelastic nano-resonator is proposed, and the effects of parameters on the resonator performance are studied.

JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN (2023)

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Article Thermodynamics

A dual-phase-lag (DPL) transient non-Fourier heat transfer analysis of functional graded cylindrical material under axial heat flux

M. Hadi Ghasemi et al.

Summary: This study presents an analytic solution for the dual-phase-lag heat conduction in a functional graded cylindrical material. The results show that the dual-phase-lag model reaches steady temperature faster than the single-phase-lag model. The temperature stability in functional graded materials is influenced by the heterogeneity coefficient. The study provides a straightforward multivariate analytical solution for the non-Fourier conduction equation in a finite cylinder with functional graded materials and any boundary conditions.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2022)

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Article Mathematics, Applied

2D hereditary thermoelastic application of a thick plate under axisymmetric temperature distribution

Hany H. Sherief et al.

Summary: This work introduces a new theory of generalized fractional hereditary thermoelasticity associated with Mittag-Leffler relaxation function, and analyzes a two-dimensional problem of a thick plate of hereditary thermoelastic. The solution is obtained in the transformed domain using a direct approach along with Laplace and Hankel transform techniques. The distributions of different fields like temperature, displacement, and stresses have been computed and presented graphically.

MATHEMATICAL METHODS IN THE APPLIED SCIENCES (2022)

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Article Physics, Multidisciplinary

A comparative numerical study of a semi-infinite heat conductor subject to double strip heating under non-Fourier models

Emad Awad et al.

Summary: This paper examines a two-dimensional heat conduction problem using both Fourier and non-Fourier models. The authors provide a solution using integral transform technique and numerical techniques, and discuss different heat transfer situations and compare the speeds of different models.

EUROPEAN PHYSICAL JOURNAL PLUS (2022)

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Article Thermodynamics

Neural network method for solving nonlocal two-temperature nanoscale heat conduction in gold films exposed to ultrashort-pulsed lasers

Aniruddha Bora et al.

Summary: This article presents an artificial neural network (ANN) method for solving the nonlocal two-temperature model, which accurately predicts the temperature changes in nanoscale gold films under ultrashort-pulsed laser irradiation.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2022)

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Article Thermodynamics

On the two-temperature description of heterogeneous materials

R. Kovacs et al.

Summary: Thermal behavior is crucial in various applications and affects the lifetime and safe operations of devices. With the emergence of complex material structures due to technological development, research on advanced thermal models becomes even more important. This paper focuses on two advanced models, the two-temperature model and the Guyer-Krumhansl equation, comparing their physical background and characteristic behavior, and conducting the first experimental test of the two-temperature model. It is found that both approaches can model the experimental data under certain conditions and provide different insights into the observed heat conduction phenomenon.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2022)

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Article Thermodynamics

Neural network method for solving parabolic two-temperature microscale heat conduction in double-layered thin films exposed to ultrashort-pulsed lasers

Aniruddha Bora et al.

Summary: Simulation of micro/nanoscale heat conduction induced by ultrashort-pulsed laser heating is a topic of great interest. Machine and deep learning techniques are increasingly important tools in engineering and science research. The article presents an artificial neural network method for solving heat conduction equations in thin films exposed to ultrashort-pulsed lasers and analyzes its convergence to the analytical solution.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2021)

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Article Thermodynamics

From continuous-time random walks to the fractional Jeffreys equation: Solution and properties

Emad Awad et al.

Summary: Jeffreys equation extends diffusive laws for heat and particle transport, exhibiting various anomalous behaviors in mean squared displacement. Different approaches, such as fractional Taylor series and distributed-order derivatives, transform traditional laws into the time-fractional Jeffreys equation for practical applications.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2021)

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Article Physics, Multidisciplinary