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035 _a(RuTPU)RU\TPU\network\12517
035 _aRU\TPU\network\11383
090 _a647378
100 _a20160407a2015 k y0engy50 ba
101 0 _aeng
102 _aNL
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aUnsteady Natural Convection with Temperature-Dependent Viscosity in a Square Cavity Filled with a Porous Medium
_fM. S. Astanina, M. A. Sheremet, J. C. Umavathi
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: р. 126 (24 tit.)]
330 _aA numerical investigation is implemented on the unsteady natural convection with a temperature-dependent viscosity inside a square porous cavity. The vertical walls of the cavity are kept at constant but different temperatures, while the horizontal walls are adiabatic. The mathematical model formulated in dimensionless stream function, vorticity and temperature variables is solved using implicit finite difference schemes of the second order. The governing parameters are the Rayleigh number, Darcy number, viscosity variation parameter and dimensionless time. The effects of these parameters on the average Nusselt number along the hot wall as well as on the streamlines and isotherms are analyzed. The results show an intensification of convective flow and heat transfer with an increase in the viscosity variation parameter for the porous media, while in the case of pure fluid, the effect is opposite.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tTransport in Porous Media
463 _tVol. 110, iss. 1
_v[P. 113-126]
_d2016
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
700 1 _aAstanina
_bM. S.
701 1 _aSheremet
_bM. A.
_cphysicist
_cAssociate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences
_f1983-
_gMikhail Aleksandrovich
_2stltpush
_3(RuTPU)RU\TPU\pers\35115
701 1 _aUmavathi
_bJ. C.
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bЭнергетический институт (ЭНИН)
_bКафедра атомных и тепловых электростанций (АТЭС)
_h118
_2stltpush
_3(RuTPU)RU\TPU\col\18683
801 2 _aRU
_b63413507
_c20170210
_gRCR
856 4 _uhttp://dx.doi.org/10.1007/s11242-015-0558-x
942 _cCF