 |
 |
 |
|
|
|
[Sponsors] | ||||
April 5, 2005, 14:59
|
Time step in time explicit solver
|
#1 |
|
Guest
Posts: n/a
|
I know that Fluent chooses the time step (in an unsteady explicit model) as: CFL Dx /(u+a). But what is exactly Dx? The help says it is the local grid size. What does it mean? Consider that I have a quadrilateral 2D mesh, is it the diagonal? the biggest dimension? To anyone that can help me...Thank you
|
|
|
||
|
August 5, 2009, 11:32
|
|
#2 |
|
Senior Member
Shamoon Jamshed
Join Date: Apr 2009
Location: Islamabad
Posts: 410
Rep Power: 20   |
The dx is the minimum of cell size
cheers |
|
|
|
|
 |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Physical Reason for stability of Implicit Schemes? | radhakrishnan | Main CFD Forum | 26 | October 3, 2023 23:05 |
| Multiple floating objects | CKH | OpenFOAM Running, Solving & CFD | 14 | February 20, 2019 10:08 |
| Hydrostatic Pressure and Gravity | miliante | OpenFOAM Running, Solving & CFD | 132 | October 7, 2012 23:50 |
| Full pipe 3D using icoFoam | cyberbrain | OpenFOAM | 4 | March 16, 2011 10:20 |
| calculation diverge after continue to run | zhajingjing | OpenFOAM | 0 | April 28, 2010 05:35 |
Linear Mode
