|
[Sponsors] |
December 21, 2006, 08:13 |
heat transfer with natural convection.
|
#1 |
Guest
Posts: n/a
|
Hi. I´m trying to model heat transfer in a fluid domain (naphta). The domain is a semicircle cut by a plane in the bottom, and it has two fixed temperatures in the bottom (low) and in the top (high).The walls are adiabatic. Watching this I expect to have a little effect of natural convection that increases the flux (respect of conduction). But when I include the k-e turbulence model (I do it because cfx recomends this when the Rayleigh Number is bigger than 10^10) the flux becomes extremely big (out of what can be expected). It seems to converge, so I don´t know which could be the problem. Can anybody help me??
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Multiregion Heat Transfer + natural convection (water) with chtMultiRegionFoam | fattychickenrun | OpenFOAM | 5 | October 31, 2011 16:53 |
Radiative heat transfer with natural convection inside a square cavity | msarkar | OpenFOAM | 1 | January 11, 2010 22:21 |
Convective / Conductive Heat Transfer in Hypersonic flows | enigma | Main CFD Forum | 2 | November 1, 2009 22:53 |
Natural convection heat transfer | Tamm | FLUENT | 1 | January 5, 2005 01:38 |
Convective Heat Transfer - Heat Exchanger | Mark | CFX | 6 | November 15, 2004 15:55 |