000 03639nlm1a2200397 4500
001 659006
005 20231030041614.0
035 _a(RuTPU)RU\TPU\network\27302
090 _a659006
100 _a20181221a2018 k y0engy50 ba
101 0 _aeng
102 _aCH
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aImpacts of Heat-Conducting Solid Wall and Heat-Generating Element on Free Convection of Al2O3/H2O Nanofluid in a Cavity with Open Border
_fM. A. Sheremet [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 25 tit.]
330 _aDevelopment of modern electronic devices demands a creation of effective cooling systems in the form of active or passive nature. More optimal technique for an origination of such cooling arrangement is a mathematical simulation taking into account the major physical processes which define the considered phenomena. Thermogravitational convection in a partially open alumina-water nanoliquid region under the impacts of constant heat generation element and heat-conducting solid wall is analyzed numerically. A solid heat-conducting wall is a left vertical wall cooled from outside, while a local solid element is placed on the base and kept at constant volumetric heat generation. The right border is supposed to be partially open in order to cool the local heater. The considered domain of interest is an electronic cabinet, while the heat-generating element is an electronic chip. Partial differential equations of mathematical physics formulated in non-primitive variables are worked out by the second order finite difference method. Influences of the Rayleigh number, heat-transfer capacity ratio, location of the local heater and nanoparticles volume fraction on liquid circulation and thermal transmission are investigated. It was ascertained that an inclusion of nanosized alumina particles to the base liquid can lead to the average heater temperature decreasing, that depends on the heater location and internal volumetric heat generation. Therefore, an inclusion of nanoparticles inside the host liquid can essentially intensify the heat removal from the heater that is the major challenge in different engineering applications. Moreover, an effect of nanosized alumina particles is more essential in the case of low intensive convective flow and when the heater is placed near the cooling wall.
461 _tEnergies
463 _tVol. 11
_v[3434, 17 p.]
_d2018
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aконвекция
610 1 _aнаножидкости
610 1 _aполости
610 1 _aметод конечных разностей
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 _aOztop
_bH. F.
701 1 _aGvozdyakov
_bD. V.
_cspecialist in the field of power engineering
_cengineer of Tomsk Polytechnic University, assistant
_f1985-
_gDmitry Vasilievich
_2stltpush
_3(RuTPU)RU\TPU\pers\35121
701 1 _aMohamed
_bA. E.
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа физики высокоэнергетических процессов
_c(2017- )
_h8118
_2stltpush
_3(RuTPU)RU\TPU\col\23551
801 2 _aRU
_b63413507
_c20181221
_gRCR
856 4 _uhttps://doi.org/10.3390/en11123434
942 _cCF