TY - JOUR
T1 - Mixed convection in a rectangular enclosure with temperature-dependent viscosity and viscous dissipation
AU - Gómez López, A.
AU - Estela García Rojas, B.
AU - Vargas Aguilar, R. O.
AU - Martínez-Suástegui, L. A.
N1 - Publisher Copyright:
© Springer International Publishing Switzerland 2015.
PY - 2015
Y1 - 2015
N2 - The problem of laminar opposing mixed convection inside a two-dimensional rectangular enclosure with asymmetrical heating is studied numerically using the vorticity-stream function formulation of the Navier-Stokes and energy equations. The model considers viscous dissipation and viscosity is assumed to vary with temperature according to an exponential relation, while other fluid properties are considered constant. Numerical experiments have been performed for fixed values of the geometrical parameters, Reynolds number of Re = 20, Prandtl number of Pr = 3,060, a range of Richardson numbers from 0 to 10, and Brinkman numbers ranging between 0 to 40. Streamlines, temperature contours, maximum fluid temperature and average Nusselt number at both walls are obtained. The results show that combined viscous dissipation and variable fluid viscosity can be important in the overall flow and heat transfer characteristics.
AB - The problem of laminar opposing mixed convection inside a two-dimensional rectangular enclosure with asymmetrical heating is studied numerically using the vorticity-stream function formulation of the Navier-Stokes and energy equations. The model considers viscous dissipation and viscosity is assumed to vary with temperature according to an exponential relation, while other fluid properties are considered constant. Numerical experiments have been performed for fixed values of the geometrical parameters, Reynolds number of Re = 20, Prandtl number of Pr = 3,060, a range of Richardson numbers from 0 to 10, and Brinkman numbers ranging between 0 to 40. Streamlines, temperature contours, maximum fluid temperature and average Nusselt number at both walls are obtained. The results show that combined viscous dissipation and variable fluid viscosity can be important in the overall flow and heat transfer characteristics.
UR - http://www.scopus.com/inward/record.url?scp=85028688565&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-11487-3_15
DO - 10.1007/978-3-319-11487-3_15
M3 - Artículo de la conferencia
AN - SCOPUS:85028688565
SN - 1863-5520
SP - 253
EP - 259
JO - Environmental Science and Engineering (Subseries: Environmental Science)
JF - Environmental Science and Engineering (Subseries: Environmental Science)
IS - 203009
T2 - 19th Annual Meeting of the Fluid Dynamic Division of the Mexican Physical Society, 2013
Y2 - 13 November 2013 through 15 November 2013
ER -