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Nanoscale geometrical patterning for junctionless thermoelectrics
Gonzalez-Munoz S +12 more
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Establishing non-linear convective heat transfer coefficient
Coupled Systems Mechanics, 2022The aim of the work presented in this paper is development of numerical model for prediction of temperature distribution in pavement according to the measured meteorological parameters, with introduction of non- linear heat transfer coefficient which is a function of temerature difference between the air and the pavement.
Cuculić, Marijana +3 more
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International Communications in Heat and Mass Transfer, 2021
Abstract In this communication, we introduce an online sequential implementation of a gradient-based method for reconstructing transient heat transfer coefficients in the context of non-linear one-dimensional heat conduction problems. Such a method employs a quasi-Newton updating strategy for computing the descent direction, in contrast with the ...
Tourn, Benjamin Alfredo +2 more
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Abstract In this communication, we introduce an online sequential implementation of a gradient-based method for reconstructing transient heat transfer coefficients in the context of non-linear one-dimensional heat conduction problems. Such a method employs a quasi-Newton updating strategy for computing the descent direction, in contrast with the ...
Tourn, Benjamin Alfredo +2 more
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Numerical estimation of convective heat transfer coefficient through linearization
International Journal of Heat and Mass Transfer, 2016Abstract In this work, methods for estimating the local convective heat transfer coefficient in coiled tubes are proposed and assessed. The methods include truncated generalized singular value decomposition, Tikhonov regularization, and a novel filtering technique which mitigates noise propagation by truncating the frequency content of ...
Bazán, Fermín S. V. +2 more
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Inverse Problems, 2017
An ill-posed problem estimating the heat transfer coefficient in coiled tubes from temperature data at the external tube is investigated. A singular value expansion of heat flux distribution is carried out for the case of noise free data and a smoothing method is developed to calculate the stable solutions for the noisy data. Regularization is achieved
F S V Bazán, L Bedin
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An ill-posed problem estimating the heat transfer coefficient in coiled tubes from temperature data at the external tube is investigated. A singular value expansion of heat flux distribution is carried out for the case of noise free data and a smoothing method is developed to calculate the stable solutions for the noisy data. Regularization is achieved
F S V Bazán, L Bedin
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Metals and Materials, 1998
The thermal physical properties were treated as a functions of temperature. On the basis of non-linear surface heat-transfer coefficient by Ref. [2], the temperature field with non-linear surface heat-transfer coefficients was calculated using finite element technique.
Heming Cheng +2 more
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The thermal physical properties were treated as a functions of temperature. On the basis of non-linear surface heat-transfer coefficient by Ref. [2], the temperature field with non-linear surface heat-transfer coefficients was calculated using finite element technique.
Heming Cheng +2 more
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International Communications in Heat and Mass Transfer, 1996
Abstract In the numerical simulation of casting solidification, the thermal behavior of the casting/mold interface is characterized by the interfacial heat transfer coefficient, ‘h’. The determination of h is difficult as it involves the solution of the Inverse Heat Conduction Problem (IHCP).
Mythily Krishnan, D.G.R. Sharma
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Abstract In the numerical simulation of casting solidification, the thermal behavior of the casting/mold interface is characterized by the interfacial heat transfer coefficient, ‘h’. The determination of h is difficult as it involves the solution of the Inverse Heat Conduction Problem (IHCP).
Mythily Krishnan, D.G.R. Sharma
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Journal of Engineering Thermophysics, 2018
The expedience of using the ratio of inertial β and viscous α hydraulic coefficients of a fluid flow in porous structures as the characteristic linear scale, when generalizing the experimental data on internal heat transfer in porous media, is shown.
Yu. A. Zeigarnik, F. P. Ivanov
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The expedience of using the ratio of inertial β and viscous α hydraulic coefficients of a fluid flow in porous structures as the characteristic linear scale, when generalizing the experimental data on internal heat transfer in porous media, is shown.
Yu. A. Zeigarnik, F. P. Ivanov
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