TY - JOUR
T1 - Mixed Convection Opposing Flow in a Vertical Porous Annulus-Two Temperature Model
AU - Al-Rashed, Abdullah A.Aa
AU - Salman Ahmed, N. J.
AU - Khaleed, H. M.T.
AU - Khan, T. M.Yunus
AU - NazimAhamed, K. S.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2016/10/11
Y1 - 2016/10/11
N2 - The opposing flow in a porous medium refers to a condition when the forcing velocity flows in opposite direction to thermal buoyancy obstructing the buoyant force. The present research refers to the effect of opposing flow in a vertical porous annulus embedded with fluid saturated porous medium. The thermal non-equilibrium approach with Darcy modal is considered. The boundary conditions are such that the inner radius is heated with constant temperature Tw the outer radius is maintained at constant temperature Tc. The coupled nonlinear partial differential equations such as momentum equation, energy equation for fluid and energy equation for solid are solved using the finite element method. The opposing flow variation of average Nusselt number with respect to radius ratio Rr, Aspect ratioAr and Radiation parameter Rd for different values of Peclet number Pe are investigated. It is found that the flow behavior is quite different from that of aiding flow.
AB - The opposing flow in a porous medium refers to a condition when the forcing velocity flows in opposite direction to thermal buoyancy obstructing the buoyant force. The present research refers to the effect of opposing flow in a vertical porous annulus embedded with fluid saturated porous medium. The thermal non-equilibrium approach with Darcy modal is considered. The boundary conditions are such that the inner radius is heated with constant temperature Tw the outer radius is maintained at constant temperature Tc. The coupled nonlinear partial differential equations such as momentum equation, energy equation for fluid and energy equation for solid are solved using the finite element method. The opposing flow variation of average Nusselt number with respect to radius ratio Rr, Aspect ratioAr and Radiation parameter Rd for different values of Peclet number Pe are investigated. It is found that the flow behavior is quite different from that of aiding flow.
KW - Finite Element Method
KW - Mixed convection
KW - Porous medium
KW - Thermal non-equilibrium
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U2 - 10.1088/1757-899X/149/1/012214
DO - 10.1088/1757-899X/149/1/012214
M3 - Conference article
AN - SCOPUS:84995542806
SN - 1757-8981
VL - 149
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012214
T2 - International Conference on Advances in Materials and Manufacturing Applications, IConAMMA 2016
Y2 - 14 July 2016 through 16 July 2016
ER -