CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Controlling variable step size with a parameter other than Courant Number

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 5, 2019, 07:00
Default Controlling variable step size with a parameter other than Courant Number
  #1
Member
 
Mike Worth
Join Date: Jun 2019
Posts: 45
Rep Power: 6
MikeWorth is on a distinguished road
I'm using twoLiquidMixingFoam to model the washout of one fluid with another from a pipe. I can use the settings adjustTimeStep & maxCo to control the timesteps such that the flow is properly resolved, but this tends to result in output that doesn't show the washout in any detail.



Is it possible to add a condition of maximum change in overall system alpha (concentration)? That would allow me to clearly resolve the initial plug-flow washout, but then not waste loads of computation with a short timestep elsewhere in the simulation.


Thanks,
Mike
MikeWorth is offline   Reply With Quote

Reply

Tags
adjusttimestep, maxco, twoliquidmixingfoam

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
[General] Extracting ParaView Data into Python Arrays Jeffzda ParaView 30 November 6, 2023 21:00
decomposePar problem: Cell 0contains face labels out of range vaina74 OpenFOAM Pre-Processing 37 July 20, 2020 05:38
Courant Number waseeqsiddiqui FLUENT 3 December 27, 2018 10:43
Stuck in a Rut- interDyMFoam! xoitx OpenFOAM Running, Solving & CFD 14 March 25, 2016 07:09
Cluster ID's not contiguous in compute-nodes domain. ??? Shogan FLUENT 1 May 28, 2014 15:03


All times are GMT -4. The time now is 13:12.