TY - JOUR
ID - 31533
TI - Numerical study of natural convection heat transfer of Al2 O3/Water nanofluid in a Γ-shaped microchannel
JO - Energy Equipment and Systems
JA - EES
LA - en
SN - 2383-1111
AU - Nourbakhsh, Amireh
AU - Bayareh, Morteza
AD - Department of Mechanical Engineering, Bu-Ali Sina University, Hamedan, Iran
AD - Department of Mechanical Engineering, Shahrekord University, Shahrekord, Iran
Y1 - 2018
PY - 2018
VL - 6
IS - 2
SP - 143
EP - 154
KW - Microchannel
KW - Velocity Slip
KW - Temperature Jump
KW - Grashof Number
KW - Nanoparticle
DO - 10.22059/ees.2018.31533
N2 - Finite-volume procedure is presented for solving the natural convection of the laminar nanofluid flow in a Γ shaped microchannel in this article. Modified Navier-Stokes equations for nanofluids are the basic equations for this problem. Slip flow region, including the effects of velocity slip and temperature jump at the wall, are the main characteristics of flow in the slip flow region. Steady state equations were solved by using time marching method. In provided FORTRAN code, the finite volume method and an explicit fourth-order Runge–Kutta integration algorithm were applied to find the steady state solutions. Also an artificial compressibility technique was used to couple the continuity to the momentum equations as it is simpler and converges faster. The Grashof numbers from to were considered. The results showed that Nusselt number increases with the Grashof number and the parameter R (the ratio of minimum diameter of nanoparticles and maximum one).. As the parameter R increases, the distortion of the isotherm lines increases to some extent.
UR - http://www.energyequipsys.com/article_31533.html
L1 - http://www.energyequipsys.com/article_31533_8df07a838c08b342b44c4283b4bce61d.pdf
ER -