This paper presents experimental results for steady-state natural convective heat transfer in partially porous rectangular enclosures of aspect ratio 5. Adiabatic and isothermal boundary conditions were imposed for the horizontal and vertical boundaries, respectively. The enclosure was divided vertically into a fluid-saturated porous region and a fluid-filled region by an impermeable partition. Measurements were conducted for different Rayleigh numbers, porous materials and thicknesses of the porous region. The results agreed with an earlier prediction that heat transfer could be minimized by partially filling the enclosure with a porous material rather than filling it entirely. A correlation has been developed expressing the Nusselt number in terms of the governing parameters.
|Number of pages||10|
|Journal||International Communications in Heat and Mass Transfer|
|Publication status||Published - 1 Jan 1988|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Chemical Engineering(all)
- Condensed Matter Physics