|
[Sponsors] |
October 11, 2019, 12:47 |
Modeling module with natural convection
|
#1 |
New Member
Manuel Alejandro Galdeano Ruiz
Join Date: Oct 2019
Posts: 2
Rep Power: 0 |
Hi guys!
First time here posting, but with a couple of months learnign from all of you, so thanks in advance. I need to simulate a module wich is like a hollow box (1m wide, 2m tall and 0.2m depth), open bottom and top surfaces to 1atm, with only the front surfacs under solar radiation, the other 2 sides and back surfaces are isolated. I'm really starting with ansys fluent, so everything that i have done comes from basically what i have seen on youtube tutorials mixed with the ansys user's guide. I need help to make a propper setup, this is what i do: General: Steady Models: energy ON, Viscous LAMINAR, Radiation DO and SOLAR LOADING Solution methods: coupled, body force weighted, second order, second order, second order, secodn order, pseudo transient Solution initialization: hibrid Run calculation: fluid time scale user specified, 1 pseudo time step. 400 iterations. The residuals doesnt converge as they should, and even though the results are kind of logic, it would be awesome if someone could help me through this setup, if there is a better one for this example. Thanks in advance! |
|
October 11, 2019, 13:20 |
|
#2 |
New Member
Daniel
Join Date: Apr 2018
Posts: 24
Rep Power: 8 |
Are you turning ON gravity and modelling air as an ideal gas (variable density)?
In my experience, results for natural convection might change quite a lot if you don't have these options enabled. |
|
October 11, 2019, 16:16 |
|
#3 |
New Member
Manuel Alejandro Galdeano Ruiz
Join Date: Oct 2019
Posts: 2
Rep Power: 0 |
Yes, gravity is enabled, and I'm also using air as an ideal gas. The rest of the setup should be ok?? Thanks...
|
|
Tags |
radiation do model, solar load |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Modeling Radiation and Natural Convection | itsme_kit | ANSYS | 0 | January 20, 2014 11:55 |
Thermophysical properties for natural convection | Ciefdi | OpenFOAM Running, Solving & CFD | 0 | November 7, 2013 12:44 |
Natural Convection - Problem in achieving converged solution | howhs | FLUENT | 2 | August 28, 2013 11:51 |
Can someone PLEASE document the development version installation | bernd | OpenFOAM Installation | 76 | November 14, 2008 22:51 |
Natural convection - Inlet boundary condition | max91 | CFX | 1 | July 29, 2008 21:28 |