Results 31 to 40 of about 190,722 (315)
The effective thermal conductivity of virtual macroporous structures
Results in Engineering, 2022 Recent developments in macroporous structures featuring metallic bodies are becoming a focus of research due to their improved load-bearing capacity and high specific surface area, making them potential candidates for thermofluidic applications.
A.J. Otaru +5 more
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Analytical methods for heat conduction in composites
Mathematical Modelling and Analysis, 2008 Analytical methods unifying the study of heat conduction in various type of composite materials are described. Analytical formulas for the effective (macroscopic) conductivity tensor are presented.
Vladimir Mityushev +3 more
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On the damping intensity of the odd Fourier impulse loading the boundary of the periodic composite
Przegląd Naukowy Inżynieria i Kształtowanie Środowiska, 2019 Investigated in the paper boundary effect behaviour for a single odd amplitude which loads rectangular boundary of the two-phased periodic composite layer confirms the common view through the prism of the expected strong suppression of the boundary ...
Dorota Kula
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On the reaction rate distribution in porous electrodes
Electrochemistry Communications, 2020 Reaction rate distribution across porous electrodes in Li-ion battery applications largely determines the overall battery performance. In the present work, expressions for the reaction rate distribution across porous electrodes are analytically derived ...
Zhiqiang Chen +3 more
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Effective thermal conductivity model of porous polycrystalline UO2: A computational approach
Nuclear Engineering and Technology, 2022 The thermal conductivity of uranium oxide (UO2) containing pores and grain boundaries is investigated using continuum-level simulations based on the finite-difference method in two and three dimensions.
Bohyun Yoon, Kunok Chang
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Effective conductivity of isotropic composite with Kapitza thermal resistance
Vietnam Journal of Mechanics, 2018 A simple method is introduced for computing the effective conductivity of isotropic composite with imperfect interface. Based on the doubly-coated circle assemblage model, one can determine the effective thermal conductivity of the composite.
Nguyen Trung Kien +2 more
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Effective Conductivity of an Isotropic Heterogeneous Medium of Lognormal Conductivity Distribution [PDF]
Multiscale Modeling & Simulation, 2003 Summary: The study aims at deriving the effective conductivity \(K_{\text{ef}}\) of a three-dimensional heterogeneous medium whose local conductivity \(K(x)\) is a stationary and isotropic random space function of lognormal distribution and finite integral scale \(I_{Y}\).
Igor Jankovic, Aldo Fiori, Gedeon Dagan
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Broadening the Bandwidth of Epsilon-Near-Zero Metamaterials with Embedded Square Frames
PhotonicsA narrow frequency bandwidth of epsilon-near-zero metamaterials limits the use of many optical, microwave, and electronic devices. In this paper, we propose a recipe to broaden the operational bandwidth by employing a structure of properly tailored ...
Anatoliy V. Goncharenko +1 more
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Polarization versus Mori-Tanaka approximations for effective conductivity of isotropic composites
Vietnam Journal of Mechanics, 2018 Our polarization approximations for the effective conductivity of isotropic multicomponent materials, constructed recently as approximate solutions to the minimum energy principles, are compared with the widely used Mori-Tanaka approximation, derived as
Nguyen Trung Kien +2 more
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Effective conductivity of conduit networks with random conductivities
Physical Review EThe effective conductivity ($T^{eff}$) of 2D and 3D Random Resistor Networks (RRNs) with random edge conductivity are studied. The combined influence of geometrical disorder, which controls the overall connectivity of the medium, and leads to percolation effects, and conductivity randomness is investigated.
Iván Colecchio +2 more
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