|
[Sponsors] |
The direction of fixedgradient at boundary patch |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
August 27, 2014, 21:15 |
The direction of fixedgradient at boundary patch
|
#1 |
Member
Kan
Join Date: Feb 2014
Location: Australia
Posts: 54
Rep Power: 12 |
Hi,
Can anybody tell me the direction of fixedgradient at boundary interface, I understand that the normal vector at boundary interface points outward, does that mean the direction of fixedgradient also points outward? Thank you Kan |
|
August 28, 2014, 01:53 |
|
#2 | |
Member
Kan
Join Date: Feb 2014
Location: Australia
Posts: 54
Rep Power: 12 |
Quote:
I thought the definition of fixedgradient should be (T_c-T_i)/(p_c-p_i), subscript c means cell centre, while i for boundary patch, p_c is larger than p_i at south boundary patch, when I set a negative fixedGradient, then I thought I should get T_c < T_i, but what I actually get is T_c > T_i. could the definition of my fixedgradient is wrong, can anyone clarify the definition of fixedgradient? Thank you Kan |
||
August 28, 2014, 02:51 |
|
#3 | |
Member
Kan
Join Date: Feb 2014
Location: Australia
Posts: 54
Rep Power: 12 |
Quote:
That solved my question |
||
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[Commercial meshers] Fluent3DMeshToFoam | simvun | OpenFOAM Meshing & Mesh Conversion | 50 | January 19, 2020 15:33 |
[swak4Foam] About groovyBC to set distributed fixedGradient values for each cell boundary patch | nwpukaka | OpenFOAM Community Contributions | 6 | August 12, 2014 06:34 |
Question about heat transfer coefficient setting for CFX | Anna Tian | CFX | 1 | June 16, 2013 06:28 |
[Other] StarToFoam error | Kart | OpenFOAM Meshing & Mesh Conversion | 1 | February 4, 2010 04:38 |
[Gmsh] Import gmsh msh to Foam | adorean | OpenFOAM Meshing & Mesh Conversion | 24 | April 27, 2005 08:19 |