Convective heat transfer in a lid-driven cavity with a heat-conducting solid backward step under the effect of buoyancy force; International Journal of Heat and Mass Transfer; Vol. 112

Convective heat transfer in a lid-driven cavity with a heat-conducting solid backward step under the effect of buoyancy force; International Journal of Heat and Mass Transfer; Vol. 112

Detalles Bibliográficos
Parent link:International Journal of Heat and Mass Transfer
Vol. 112.— 2017.— [P. 158-168]
Autor Corporativo: Национальный исследовательский Томский политехнический университет (ТПУ) Энергетический институт (ЭНИН) Кафедра атомных и тепловых электростанций (АТЭС)
Otros Autores: Gibanov N. S. Nikita, Sheremet M. A. Mikhail Aleksandrovich, Oztop H. F. Hakan, Al-Salem Kh. Khaled
Sumario:Title screen
Mixed convection in a lid-driven cavity filled with an alumina-water nanofluid in the presence of a bottom heat-conducting solid backward step has been studied numerically. Mathematical model includes partial differential equations formulated on the basis of conservation laws for mass, momentum and energy using dimensionless variables such as stream function, vorticity and temperature, and corresponding boundary conditions. The boundary-value problem has been solved by finite difference method of the second order accuracy. The effects of Richardson number (Ri = 0.01-10.0), wall step height ratio (0.3 <= h2/L <= 0.7), distance ratio between left wall and wall step (0.3 <= l/L <= 0.7), thermal conductivity ratio (1.0 <= K<= 10.0), and nanoparticles volume fraction (0 <= [psi] <= 0.05) on streamlines and isotherms as well as average Nusselt number at moving hot wall and fluid flow rate have been analyzed for Reynolds number (Re = 100), Prandtl number (Pr = 6.82) and solid wall thickness ratio (h1/L=0.1). It has been found that sizes and thermal conductivity of a backward step can essentially modify the flow and heat transfer patterns with the process intensity.
Режим доступа: по договору с организацией-держателем ресурса
Lenguaje:inglés
Publicado: 2017
Materias:
электронный ресурс
труды учёных ТПУ
mixed convection
lid-driven cavity
heat-conducting backward step
nanofluid
brownian motion effect
numerical results
смешанная конвекция
полости
броуновское движение
численные результаты
теплопроводность
наножидкости
Acceso en línea:https://doi.org/10.1016/j.ijheatmasstransfer.2017.04.102
Formato: Electrónico Capítulo de libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=656738

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