zhyang-dev/CFDEMcoupling-PFM
1
0
Fork 0
mirror of https://github.com/ParticulateFlow/CFDEMcoupling-PFM.git synced 2025-12-08 06:37:44 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

release on 2012-10-23_10-36-40

Browse Source
This commit is contained in:
cfdem
2012-10-23 10:36:40 +02:00
parent 93fcd16a45
commit 5fb9e6cd84
79 changed files with 3796 additions and 153 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
doc/CFDEMcoupling_Manual.txt
View File

@ -131,6 +131,21 @@ In "sub-model properties" sub-dictionaries might be defined to specify model spe
Reasonable example settings for the "couplingProperties" dictionary are given in the tutorial cases.
modelType :pre
"modelType" refers to the formulation of the equations to be solved. Choose "A" or "B", according to Zhou et al. (2010): "Discrete particle simulation of particle-fluid flow: model formulations and their appliccability", JFM. "A" requres the use of the force models gradPForce and viscForce, whereas "B" requires the force model "Archimedes".
couplingInterval :pre
The coupling interval determines the time passing between two CFD-DEM data exchanges.
A useful procedure would be:
1) Set the DEM TS in the in.xxx according to the needs of the pure DEM problem.
2) Set the "couplingInterval", which refers to the DEM timesteps. Depending on the problem you will need to have a close (small couplingInterval) or loose coupling.
3) Choose the CFD timestep in the controlDict. it must be equal or smaller than the coupling time, otherwise you will get the error: "Error - TS bigger than coupling interval!".
Example: DEMts=0.00001s, couplingInterval=10 exchange data (=couple) will happen every 0.0001s.
:line
1.5 "liggghtsCommands" dictionary :h4,link(1_5)
@ -404,6 +419,14 @@ Reasonable example settings for the "liggghtsCommands" dictionary are given in t