CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Community Contributions > OpenFOAM CC Toolkits for Fluid-Structure Interaction

what is the importance of deltaT and endTime entries in system/solid/controlDict?

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree1Likes
  • 1 Post By Hgholami

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 9, 2020, 12:48
Default what is the importance of deltaT and endTime entries in system/solid/controlDict?
  #1
Senior Member
 
Ali Shayegh
Join Date: Oct 2015
Posts: 121
Rep Power: 6
amuzeshi is on a distinguished road
Honored solidFoamers,
I am a little bit confused about the solids4Foam algorithm during an FSI simulation. The main question is what is the importance of deltaT and endTime entries in system/solid/controlDict ?

My understanding is as follows:
1- Fluid is solved in the current timeStep (specified in system/controlDict.deltaT).
2- Forces are applied on the solid and the displacement is calculated for THIS TIMESTEP, but WHICH TIMESTEP? The one that is specified in system/controlDict or the other one in system/solid/controlDict?
3- ...
...
This question can be asked in another way:
In an FSI simulation, is it not enough to solve fluid in a transient manner and solve solid in a steady manner at the same time step? If solids4Foam does so, why, for example in elastic beam tutorial, d2dt2Scheme is specified as Euler and not steadyState ?

Kind Regards,
Ali
amuzeshi is offline   Reply With Quote

Old   February 11, 2020, 01:00
Default
  #2
Senior Member
 
Hojatollah Gholami
Join Date: Jan 2019
Posts: 126
Rep Power: 3
Hgholami is on a distinguished road
Dear Ali
As I know, the timeStep must be same in fluid and solid solver. So it called from system/controlDict. You can delete solid/controlDict and run simulation.
amuzeshi likes this.

Last edited by Hgholami; February 11, 2020 at 01:57. Reason: detail
Hgholami is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
cannot set exact 'endtime' in controlDict when using a steady state solver minecraftgp OpenFOAM Running, Solving & CFD 4 July 24, 2018 05:13
InterFoam (PimpleFoam) not obeying DeltaT in ControlDict walakaka OpenFOAM Running, Solving & CFD 2 March 1, 2018 12:57
deltaT does not change with pimpleDyMFoam rcastilla OpenFOAM Running, Solving & CFD 3 June 8, 2016 06:50
query regarding deltaT in multiphaseEulerFoam bigboss.abhishek OpenFOAM Running, Solving & CFD 6 September 24, 2015 15:56
interDyMFoam deltaT drops non-stop Virtual-iCFD OpenFOAM Running, Solving & CFD 5 June 12, 2015 04:30


All times are GMT -4. The time now is 05:08.