TY - JOUR
T1 - Analysis of Thermal Flow in a Rotating Porous U-Turn Duct Using Lattice Boltzmann Method
AU - Kardani, Ali
AU - Omidvar, Pourya
AU - Zarghami, Ahad
PY - 2017
Y1 - 2017
N2 - The lattice Boltzmann method is carried out to investigate the heat transfer enhancement in a U-turn duct which is partially filled with a porous media. The porous layer is inserted at the core of the duct and is modeled using the Brinkman–Forchheimer assumptions. In order to validate the results, first a channel flow problem without any porous layer is compared with available data. Second, the porous Couette flow and partially porous channel flow are successfully compared with the studies of other researchers. Then, fluid flow in a clear U-turn duct is studied looking carefully at the velocity, curvature and rotation effects. Finally, the effects of porous layer thickness on the rate of heat transfer and pressure drop are investigated. Parametric studies are conducted to evaluate the effects of various parameters (i.e., Reynolds number, Darcy number, rotation number), highlighting their influences on the thermo-hydrodynamics behavior of the flow. The optimum values of porous layer thickness are presented for specific flow parameters.
AB - The lattice Boltzmann method is carried out to investigate the heat transfer enhancement in a U-turn duct which is partially filled with a porous media. The porous layer is inserted at the core of the duct and is modeled using the Brinkman–Forchheimer assumptions. In order to validate the results, first a channel flow problem without any porous layer is compared with available data. Second, the porous Couette flow and partially porous channel flow are successfully compared with the studies of other researchers. Then, fluid flow in a clear U-turn duct is studied looking carefully at the velocity, curvature and rotation effects. Finally, the effects of porous layer thickness on the rate of heat transfer and pressure drop are investigated. Parametric studies are conducted to evaluate the effects of various parameters (i.e., Reynolds number, Darcy number, rotation number), highlighting their influences on the thermo-hydrodynamics behavior of the flow. The optimum values of porous layer thickness are presented for specific flow parameters.
KW - Brinkman–Forchheimer model
KW - Heat transfer enhancement
KW - LBM
KW - Porous media
KW - U-turn duct
UR - http://www.scopus.com/inward/record.url?scp=84989838908&partnerID=8YFLogxK
U2 - 10.1007/s11242-016-0775-y
DO - 10.1007/s11242-016-0775-y
M3 - Article
AN - SCOPUS:84989838908
SN - 0169-3913
VL - 116
SP - 295
EP - 318
JO - Transport in Porous Media
JF - Transport in Porous Media
IS - 1
ER -