 |
 |
 |
|
|
|
[Sponsors] | ||||
February 12, 2014, 09:57
|
HIgh viscosity - convergence issues
|
#1 |
|
New Member
Rams Manu
Join Date: Oct 2013
Posts: 21
Rep Power: 13  |
Hi,
I am running a simple flow through a pipe. The pipe has flowing water and oil trapped beneath. I am using VOF explicit scheme with CICSAM. When I run for oil viscosity comparable to water the number of iterations required per time step to converge (to 1e-6) is just 1 or 2 iterations. But when I increase the oil viscosity, the residuals does not reach 1e-6 even if have 100 iterations/time step. My courant number is around 0.2 and Re around 0.5 Is there anything that can be done to improve the convergence ? Manxu |
|
|
|
|
 |
| Tags |
| convergence issues, high viscosity |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Convergence issues with Porous interface | oj.bulmer | CFX | 5 | January 24, 2013 05:53 |
| not convergence in high angle of attack in low reynold number | nuimlabib | Main CFD Forum | 1 | October 2, 2009 15:10 |
| Convergence of CFX field in FSI analysis | nasdak | CFX | 2 | June 29, 2009 02:17 |
| stagged grid solution is high of numer viscosity? | HT | Main CFD Forum | 13 | March 4, 2004 13:26 |
| SIMPLE for variable viscosity, poor convergence ? | Anthony Ilaner | Main CFD Forum | 15 | July 13, 2000 09:04 |
Linear Mode
