CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > CONVERGE

Velocity Profile as Boundary Condition

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

LinkBack Thread Tools Search this Thread Display Modes
Old   December 31, 2021, 12:03
Question Velocity Profile as Boundary Condition
New Member
Join Date: Dec 2021
Posts: 5
Rep Power: 2
cfd9999 is on a distinguished road
I am looking into whether or not it is possible to input a velocity profile (from a previous simulation) as a boundary condition in a new simulation. It seems that it may be possible to do this in Converge, but I am not quite sure how to yet.

More specifically, what I am trying to do is to run a pipe-flow simulation, and then I would like to take the velocity profile (and other conditions like temperature) and use them as boundary conditions in a subsequent simulation. From what I can gather, Converge does write the velocity profile upon completion on a simulation, but I am not sure if or how to then use it as a boundary condition.
cfd9999 is offline   Reply With Quote

Old   December 31, 2021, 19:29
New Member
Yu Zhang
Join Date: Oct 2021
Location: Madison
Posts: 8
Rep Power: 3
alexzhangyu is on a distinguished road

CONVERGE writes map files at the end of each simulation, including the map_< time >.h5 file for the volume and the map_ bound <boundary ID>_ <time> .out files for simulations with the "INFLOW" or "OUTFLOW"
boundaries. These map_ bound <boundary ID>_ <time> .out files contain the coordinates, velocity components, pressure, temperature, and other quantities on the inflow and outflow boundaries. Since they are column formatted ASCII files, you can easily manipulate the file contents and change the file extension from ".out" to ".in", then you can import/use the ".in" file as the boundary condition (inlet and outlet) profile file.

On the other hand, it is easy to assign a profile to a certain boundary condition in CONVERGE. In Studio, you just need to click the "Use profile" box for the desired boundary condition, then a follow-up window will pop up, and you can specify the profile (including importing from the existing file) there. Please go to "" and refer to training material related to the boundary conditions for the detailed guide.

Please contact your local CONVERGE support team if you need any further assistance from us.

__________________________________________________ ______
Yu Zhang, Ph.D.
Research Engineer - Applications
alexzhangyu is offline   Reply With Quote


boundary condition, post processing

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
Radiation in semi-transparent media with surface-to-surface model? mpeppels CFX 11 August 22, 2019 08:30
Question about adaptive timestepping Guille1811 CFX 25 November 12, 2017 18:38
Wrong flow in ratating domain problem Sanyo CFX 17 August 15, 2015 07:20
Velocity profile boundary condition Tuca FLOW-3D 1 April 23, 2013 13:02
Profile Data Velocity Boundary Condition Changes?? Maria Angelica CFX 9 June 14, 2006 03:44

All times are GMT -4. The time now is 17:53.