|
[Sponsors] |
May 9, 2006, 00:31 |
natural convection in attic spaces
|
#1 |
Guest
Posts: n/a
|
Hi i am having a problem with modelling natural convection in an isosceles triangle heated from above and cooled from below. Grashof number ~ 2 x 10^9. At the moment i am having trouble getting convergence of my solution. i have used both laminar and turbulence models and have set the energy residual to 0.8 as recommended in the instructions. Does anybody have any idea on how Fluent can be used to model high grashof number natural convection? The instructions seem to suggest that Fluent has trouble modelling in this region
|
|
February 28, 2011, 08:29 |
|
#2 |
New Member
lyes
Join Date: Feb 2011
Posts: 24
Rep Power: 15 |
hello i'm a begineer user of Fluent I want know how to set Grashof number in Fluent ?? can u explain to me what shoud I do to have a Gr+2.5 E +7 if my Re =5000 and d=1 viscosity + 1/Re velocity inlet =1 ??
|
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
natural convection problem with radiation | jorien | CFX | 0 | October 14, 2011 10:26 |
Natural Convection Problem - Helium | marzoa | STAR-CCM+ | 0 | April 18, 2011 15:12 |
Coupled vs Seg - Natural vs. Forced Convection | Alex | Siemens | 5 | December 12, 2007 05:58 |
natural convection at high Rayleigh | mauricio | FLUENT | 2 | February 23, 2005 20:43 |
Mixing By Natural Convection Processes | Greg Perkins | FLUENT | 0 | February 12, 2003 19:40 |