TY - GEN
T1 - Combined convection heat transfer of nanofluids flow over forward facing step in a channel having a blockage
AU - Mohammed, H. A.
AU - Golieskardi, M.
AU - Munisamy, K. M.
AU - Wahid, Mazlan A.
PY - 2013
Y1 - 2013
N2 - Numerical simulations of two dimensional laminar combined convection flows using nanofluids over forward facing step with a blockage are analyzed. The continuity, momentum and energy equations are solved using finite volume method (FVM) and the SIMPLE algorithm scheme is applied to examine the effect of the blockage on the heat transfer characteristics. In this project, several parameters such as different types of nanofluids (Al2O3, SiO2, CuO and ZnO), different volume fraction in the range of 1% - 4%, different nanoparticles diameter in the range of 25nm- 80nm were used. Effects of different shapes of blockage (Circular, Square and Triangular) were studied. The numerical results indicated that SiO2nanofluid has the highest Nusselt number. The Nusselt number increased as the volume fraction and Reynolds number increase, while it decreases as the nanoparticles diameter increases. Circular blockage produced higher results compared to triangular and square one.
AB - Numerical simulations of two dimensional laminar combined convection flows using nanofluids over forward facing step with a blockage are analyzed. The continuity, momentum and energy equations are solved using finite volume method (FVM) and the SIMPLE algorithm scheme is applied to examine the effect of the blockage on the heat transfer characteristics. In this project, several parameters such as different types of nanofluids (Al2O3, SiO2, CuO and ZnO), different volume fraction in the range of 1% - 4%, different nanoparticles diameter in the range of 25nm- 80nm were used. Effects of different shapes of blockage (Circular, Square and Triangular) were studied. The numerical results indicated that SiO2nanofluid has the highest Nusselt number. The Nusselt number increased as the volume fraction and Reynolds number increase, while it decreases as the nanoparticles diameter increases. Circular blockage produced higher results compared to triangular and square one.
KW - Blockage
KW - Forward facing step
KW - Heat transfer enhancement
KW - Nanofluids
UR - https://www.scopus.com/pages/publications/84884774831
U2 - 10.4028/www.scientific.net/AMM.388.185
DO - 10.4028/www.scientific.net/AMM.388.185
M3 - Conference contribution
AN - SCOPUS:84884774831
SN - 9783037858165
T3 - Applied Mechanics and Materials
SP - 185
EP - 191
BT - Advances in Thermofluids
T2 - 5th International Meeting on Advances of Thermofluids, IMAT 2012
Y2 - 12 November 2012 through 13 November 2012
ER -