Paper Titles in Periodical
International Letters of Chemistry, Physics and Astronomy
Volume 55


Subscribe to our Newsletter and get informed about new publication regulary and special discounts for subscribers!

ILCPA > Volume 55 > Intensification of Heat Transfer in Cavity...
< Back to Volume

Intensification of Heat Transfer in Cavity Partially Heated and Filled with Nanofluid (Cu-Water)

Full Text PDF


Natural convection in a rectangular cavity with aspect ratio (Ax), partially heated and filled with a nanofluid (Cu-Water) has been studied numerically. Two heat sources with length (B) are placed on the opposite vertical walls; the remainder of the walls is maintained adiabatic while the horizontal walls are brought to a cold temperature. The equations governing the flow are solved using a finite volume home code using a multigrid technique. Among the parameters governing the flow, a detailed study on the effects of the aspect ratio (Ax) and the length of the source (B) on flow and heat transfer rate is given. The results are shown in terms of streamlines and isotherms. It was found that the transfer of heat significantly increases with the aspect ratio (Ax) and the length of the source (B). A correlation expressing the Nusselt number as a function of (Ax) and d is established.


International Letters of Chemistry, Physics and Astronomy (Volume 55)
R. Jmai et al., "Intensification of Heat Transfer in Cavity Partially Heated and Filled with Nanofluid (Cu-Water)", International Letters of Chemistry, Physics and Astronomy, Vol. 55, pp. 173-179, 2015
Online since:
Jul 2015

[1] U.S. Choi, Enhancing thermal conductivity of fluids with nanoparticles, ASME Fluids Eng. Div. 231 (1995) 99–105.

[2] M. Chandrasekar, S. Suresh, A. Chandra Bose, Experimental investigations and theoretical determination of thermal conductivity and viscosity of Al2O3/water nanofluid, Exp. Therm. Fluid Sci. 34 (2010) 210–216.

DOI: 10.1016/j.expthermflusci.2009.10.022

[3] K. Khanafer, Kambiz Vafai , Marilyn Lightstone, Buoyancy-driven heat transfer enhancement in a two-dimensional enclosure utilizing nanofluids, Int. J. Heat Mass Transf. 46 (2003) 3639–3653.

DOI: 10.1016/s0017-9310(03)00156-x

[4] K. S. Hwang, Ji-Hwan Lee, S. P. Jang, Buoyancy-driven heat transfer of water-based Al2O3 nanofluids in a rectangular cavity, Int. J. Heat Mass Transf. 50 (2007) 4003–4010.

DOI: 10.1016/j.ijheatmasstransfer.2007.01.037

[5] Eiyad Abu-Nada, Hakan F. Oztop, Effects of inclination angle on natural convection in enclosures filled with Cu–water nanofluid, Int. J. Heat Fluid Flow 30 (2009) 669–678.

DOI: 10.1016/j.ijheatfluidflow.2009.02.001

[6] N. Nithyadevi, P. Kandaswamy, J. Lee Natural convection in a rectangular cavity with partially active side walls. Int. J. Heat and Mass Transfer 50 (2007) 4688-4697.

DOI: 10.1016/j.ijheatmasstransfer.2007.03.050

[7] Hakan F. Oztop, Eiyad Abu-Nada, Numerical study of natural convection in partially heated rectangular enclosures filled with nanofluids. Int. J. Heat Fluid Flow 29 (2008) 1326-1336.

DOI: 10.1016/j.ijheatfluidflow.2008.04.009

[8] S.M. Aminossadati, B. Ghasemi, Natural convection cooling of a localised heat source at the bottom of a nanofluid-filled enclosure, Eur. J. Mech. B Fluids 28 (2009) 630–640.

DOI: 10.1016/j.euromechflu.2009.05.006

[9] Ridha Jmai, Brahim Ben-Beya, Taieb Lili, Heat transfer and fluid flow of nanofluid-filled enclosure with two partially heated side walls and different nanoparticles. Superlattices and Microstructures 53 (2013) 130–154.

DOI: 10.1016/j.spmi.2012.10.003

[10] D.L. Brown, R. Cortez, M.L. Minion, Accurate projection methods for the incompressible Navier–Stokes equations, J. Comput. Phys. 168 (2001) 464–499.

DOI: 10.1006/jcph.2001.6715

[11] T. Hayase, J.A.C. Humphrey, R. Greif, A consistently formulated QUICK scheme for fast and stable convergence using finite-volume iterative calculation procedures, J. Comput. Phys. 98 (1992) 108–118.

DOI: 10.1016/0021-9991(92)90177-z

[12] N.B. Cheikh, B. Ben Beya, T. Lili, Benchmark solution for time-dependent natural convection flows with an accelerated full-multigrid method, Numer. Heat Transfer B 52 (2007) 131–151.

DOI: 10.1080/10407790701347647

[13] B. Ben Beya, Taieb Lili, Three dimensional incompressible flow in a two-sided non-facing lid-driven cubical cavity, C. R. Mecanique 336 (2008) 863–872.

DOI: 10.1016/j.crme.2008.10.004
Show More Hide