Irreversibilities in a triple diffusive flow in various porous cavities

doi:10.1016/j.cjph.2021.06.017

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DOI Доступ к ресурсу на сайте издателя			10.1016/j.cjph.2021.06.017

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Title: Irreversibilities in a triple diffusive flow in various porous cavities
Creator: Khan, Zafar Hayat
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Khan, Waqar Ahmad
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Sheremet, Mikhail A.
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Tang, Jiguo
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Sun, Licheng
Date: 2021
DOI: 10.1016/j.cjph.2021.06.017
Description: Entropy generation minimization approach is a very good method allowing to analyze the engineering systems to exclude technical failure. The present study deals with computational analysis of triple diffusive flow, energy transference and entropy production in different porous cavities from square to triangular through trapezoidal shape. The formulated boundary-value problem has been worked out using the finite element technique and non-primitive variables. The developed computational code has been verified using numerical results of other researchers. Analysis of entropy production due to energy and mass transport, motion friction, and porous material has been performed for different chamber's shapes. Entropy generation analysis in chambers of various geometries under the triple-diffusive flow is a novelty of the present research, where different entropy production mechanisms have been scrutinized for one complex problem. It has been ascertained that average total entropy generation strength raises with buoyancy ratios, Lewis and Rayleigh numbers, but it has the minimum value for the square chamber in comparison with triangular and trapezoidal shapes. Moreover, obtained results characterize a neglecting influence of motion friction on the total entropy generation.

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collection(s): Механико-математический факультет
Identifier: смотреть в электронном каталоге НБ ТГУ
Type: статьи в журналах
Source: Chinese journal of physics. 2021. Vol. 73. P. 239-255
Language: eng

Created: 12-10-2022

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Механико-математический факультет Irreversibilities in a triple diffusive flow in various porous cavities