|
[Sponsors] |
August 22, 2014, 00:48 |
Convergence problem?
|
#1 |
New Member
Johann
Join Date: Jun 2014
Posts: 2
Rep Power: 0 |
Hello, this is my first post, i'm actually a new user to ANSYS FLUENT.
I'm in the design process of an airfoil, i did my mesh(ICEM) and the quality tells me i'm over 0.8 in all the mesh. When i run the FLUENT analysis, it always converges on 0 to 12° AoA, even though i think i'm wrong the AoA vs Cl plots a very nice curve. I don't really know if that's correct. I used Trans SST coupled and second order upwind with pseudo transient active. When iterating approximately at 160 to 180 it converges, the residuals also converge. help pls |
|
September 15, 2014, 18:20 |
hi johan
|
#2 |
New Member
rahul kumar
Join Date: Jun 2014
Posts: 24
Rep Power: 12 |
may be you can decrease your time step-size or select as adaptive instead of fixed and convergence also depends on courant number so you can check that as well
|
|
Tags |
convergence fluent, convergence issues, convergence problem, convergence problems, mesh and grid |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Centrifugal pump OpenFOAM, convergence problem, ANSA model | RDD | OpenFOAM Running, Solving & CFD | 0 | July 5, 2014 10:12 |
Convergence Problem in Axisymmetric Periodic Flow | atheresia | FLUENT | 3 | February 10, 2014 04:00 |
Force can not converge | colopolo | CFX | 13 | October 4, 2011 23:03 |
convergence problem when use pisoFoam, LES for wind tunnel case | Forrest_Lei | OpenFOAM | 3 | July 19, 2011 07:00 |
Convergence of CFX field in FSI analysis | nasdak | CFX | 2 | June 29, 2009 02:17 |