CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

Unsteady mass flow inet BC

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

Like Tree5Likes
  • 1 Post By mallikarjuns88
  • 1 Post By cwl
  • 1 Post By starccm
  • 2 Post By cwl

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 10, 2020, 03:43
Post Unsteady mass flow inet BC
  #1
New Member
 
arjun
Join Date: Apr 2018
Posts: 4
Rep Power: 7
mallikarjuns88 is on a distinguished road
Hi,

1) I want to give time dependent mass flow inlet as BC. below is the conditions.

Total physical time is 1.0 s
Mass flow inlet starts @ 0.2 s and ends @ 0.6 s

Can somebody guide me how to give this ?

2) Also for first 0.2 s i want to use 0.0001 time step.
From 0.2 to 0.6 s i want to use 5.0 e-06 time step.
from 0.6 to 1.0 s i want to use 0.0001 time step.

Can somebody help me in this ?

Thanks,
Arjun
Светлана likes this.
mallikarjuns88 is offline   Reply With Quote

Old   January 10, 2020, 08:23
Default
  #2
cwl
Senior Member
 
Chaotic Water
Join Date: Jul 2012
Location: Elgrin Fau
Posts: 433
Rep Power: 17
cwl is on a distinguished road
Use Field Functions.
You can read about them in user guide on the page 447.
Светлана likes this.
cwl is offline   Reply With Quote

Old   January 14, 2020, 13:24
Default
  #3
New Member
 
Join Date: Jan 2020
Posts: 13
Rep Power: 6
starccm is on a distinguished road
Where is this user guide?
Светлана likes this.
starccm is offline   Reply With Quote

Old   January 14, 2020, 15:37
Default
  #4
cwl
Senior Member
 
Chaotic Water
Join Date: Jul 2012
Location: Elgrin Fau
Posts: 433
Rep Power: 17
cwl is on a distinguished road
Quote:
Originally Posted by starccm View Post
Where is this user guide?
For new versions:
C:\Program Files\Siemens\<Version>\STAR-CCM+<Version>\doc
for old versions:
C:\Program Files\CD-Adapco\<Version>\STAR-CCM+<Version>\doc
Светлана and starccm like this.
cwl is offline   Reply With Quote

Old   January 14, 2020, 19:32
Default
  #5
New Member
 
Join Date: Jan 2020
Posts: 13
Rep Power: 6
starccm is on a distinguished road
Quote:
Originally Posted by cwl View Post
For new versions:
C:\Program Files\Siemens\<Version>\STAR-CCM+<Version>\doc
for old versions:
C:\Program Files\CD-Adapco\<Version>\STAR-CCM+<Version>\doc
Thanks. The folder doc wasn't there. This tutorial is like a pdf file?
starccm is offline   Reply With Quote

Old   January 15, 2020, 01:26
Default
  #6
cwl
Senior Member
 
Chaotic Water
Join Date: Jul 2012
Location: Elgrin Fau
Posts: 433
Rep Power: 17
cwl is on a distinguished road
Yes, a 12000+ pages pdf file.
cwl 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
Match Pressure Inlet/Outlet Boundary Condition Mass Flow Rate MSchneid Fluent UDF and Scheme Programming 3 February 23, 2019 07:00
Target Mass Flow Rate Nitin FLUENT 9 June 17, 2017 11:30
Mass flow discrepancy BenMUC CFX 3 May 2, 2014 04:29
total mass loss/gain--simulating taylor couette flow nwpukaka OpenFOAM Programming & Development 0 February 12, 2014 19:57
mass flow rate... sanjar OpenFOAM Running, Solving & CFD 1 December 2, 2013 01:09


All times are GMT -4. The time now is 00:55.