This work deals with the numerical analysis of a radiating gas flow caused by both temperature and buoyancy concentration gradients in a square cavity; in this regard, the set of governing equations, including conservation of mass, momentum, species, and energy are solved by a numerical technique. In terms of radiation, since the fluid is considered as a semitransparent medium, the radiative term in the energy equation appears and is calculated by numerical solving of the radiative transfer equation (RTE). Furthermore, all of the surrounding cavity walls are considered to be opaque, gray, and diffuse with constant emissivity. All of the flow equations are solved by the finite difference method (FDM) and the RTE by the discrete ordinate one (DOM). In the present study, an attempt is made to verify the optical thickness effects on flow, thermal behavior, and mass transform in a cavity flow, such that reciprocating trends were seen in this manner. Our numerical results show that the thermal field in double-diffusive convection flow reaches very fast its steady-state situation in comparison to the concentration distribution. Besides, it is found that the thermohydrodynamic characteristics of a double-diffusive convection flow of a radiating gas are much affected by optical thickness.

Accepted:

Published online:

Mohammad Foruzan Nia ^{1};
Seyyed Abdolreza Gandjalikhan Nassab ^{1}

@article{CRMECA_2019__347_5_406_0, author = {Mohammad Foruzan Nia and Seyyed Abdolreza Gandjalikhan Nassab}, title = {Thermohydrodynamic characteristics of combined double-diffusive radiation convection heat transfer in a cavity}, journal = {Comptes Rendus. M\'ecanique}, pages = {406--422}, publisher = {Elsevier}, volume = {347}, number = {5}, year = {2019}, doi = {10.1016/j.crme.2019.02.003}, language = {en}, }

TY - JOUR AU - Mohammad Foruzan Nia AU - Seyyed Abdolreza Gandjalikhan Nassab TI - Thermohydrodynamic characteristics of combined double-diffusive radiation convection heat transfer in a cavity JO - Comptes Rendus. Mécanique PY - 2019 SP - 406 EP - 422 VL - 347 IS - 5 PB - Elsevier DO - 10.1016/j.crme.2019.02.003 LA - en ID - CRMECA_2019__347_5_406_0 ER -

%0 Journal Article %A Mohammad Foruzan Nia %A Seyyed Abdolreza Gandjalikhan Nassab %T Thermohydrodynamic characteristics of combined double-diffusive radiation convection heat transfer in a cavity %J Comptes Rendus. Mécanique %D 2019 %P 406-422 %V 347 %N 5 %I Elsevier %R 10.1016/j.crme.2019.02.003 %G en %F CRMECA_2019__347_5_406_0

Mohammad Foruzan Nia; Seyyed Abdolreza Gandjalikhan Nassab. Thermohydrodynamic characteristics of combined double-diffusive radiation convection heat transfer in a cavity. Comptes Rendus. Mécanique, Volume 347 (2019) no. 5, pp. 406-422. doi : 10.1016/j.crme.2019.02.003. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2019.02.003/

[1] A numerical simulation of combined radiation and natural convection in a differential heated cubic cavity, J. Heat Transf., Volume 132 (2009) http://heattransfer.asmedigitalcollection.asme.org/article.aspx?articleid=1449835

[2] Radiation-natural convection interactions in two-dimensional complex enclosures, J. Heat Transf., Volume 105 (1983), pp. 89-95 http://heattransfer.asmedigitalcollection.asme.org/article.aspx?articleid=1437897

[3] Radiation-induced buoyancy-driven flow in rectangular enclosures: experiment and analysis, J. Heat Transf., Volume 109 (1986), pp. 427-433 http://heattransfer.asmedigitalcollection.asme.org/article.aspx?articleid=1439323

[4] Combined heat transfer of radiation and natural convection in a square cavity containing participating gases, Int. J. Heat Mass Transf., Volume 54 (2011), pp. 5087-5099 http://www.sciencedirect.com/science/article/pii/S0017931011004029 | DOI

[5] Transient combined natural convection and radiation in a double space cavity with conducting walls, Int. J. Therm. Sci., Volume 128 (2018), pp. 94-104 http://www.sciencedirect.com/science/article/pii/S1290072917318896 | DOI

[6] Numerical simulation of double diffusive natural convection in rectangular enclosure in the presences of magnetic field and heat source, Int. J. Therm. Sci., Volume 47 (2008), pp. 237-248 http://www.sciencedirect.com/science/article/pii/S1290072907000634 | DOI

[7] Free convection in porous media filled right-angle triangular enclosures, Int. Commun. Heat Mass Transf., Volume 33 (2006), pp. 1190-1197 http://www.sciencedirect.com/science/article/pii/S0735193306001588 | DOI

[8] Double-diffusive natural convection in a triangular solar collector, Int. Commun. Heat Mass Transf., Volume 39 (2012), pp. 264-269 http://www.sciencedirect.com/science/article/pii/S0735193311002521 | DOI

[9] Study of double-diffusive natural convection and radiation in an inclined cavity using lattice Boltzmann method, Int. J. Therm. Sci., Volume 63 (2013), pp. 65-86 http://www.sciencedirect.com/science/article/pii/S1290072912002153 | DOI

[10] Onset of double-diffusive convection in horizontal cavity with Soret and Dufour effects, Int. J. Heat Mass Transf., Volume 78 (2014), pp. 1023-1031 http://www.sciencedirect.com/science/article/pii/S001793101400653X | DOI

[11] Radiative Heat Transfer, Academic Press, 2013

[12] Conjugate heat transfer study of combined radiation and forced convection turbulent separated flow, Int. J. Nonlinear Sci. Numer. Simul., Volume 18 (2017), pp. 29-39 https://www.degruyter.com/view/j/ijnsns.2017.18.issue-1/ijnsns-2015-0134/ijnsns-2015-0134.xml | DOI

[13] Numerical Methods for Engineering Application, Wiley, 1981 https://books.google.com/books?id=dp0oAQAAMAAJ

[14] Two-dimensional transient conduction and radiation heat transfer with temperature dependent thermal conductivity, Int. Commun. Heat Mass Transf., Volume 32 (2005), pp. 305-314 http://www.sciencedirect.com/science/article/pii/S0735193304001654 | DOI

[15] Numerical Methods for Engineers and Scientists, CRC Press, 2001 https://www.crcpress.com/Numerical-Methods-for-Engineers-and-Scientists/Hoffman-Hoffman-Frankel/p/book/9780824704438

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