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

Freezing Velocity Flow Field

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 24, 2019, 10:27
Default Freezing Velocity Flow Field
  #1
New Member
 
Pierce
Join Date: May 2019
Posts: 13
Rep Power: 2
PierceH is on a distinguished road
Hello,

I want to be able to freeze the velocity flow-field while still calculating the pressure for these velocity conditions on STAR CCM+. In my inquiry, one of the developers mentioned the 'Great Source Method' however no documentation is available on this matte. I was hoping someone would have experience maintaining a velocity flow-field while calculating the Pressure.

Thank you.
PierceH is offline   Reply With Quote

Old   October 25, 2019, 08:11
Question
  #2
Senior Member
 
Ashok Chaudhari
Join Date: Aug 2016
Location: Pune, India
Posts: 223
Rep Power: 6
ashokac7 is on a distinguished road
Send a message via Skype™ to ashokac7
Quote:
Originally Posted by PierceH View Post
Hello,

I want to be able to freeze the velocity flow-field while still calculating the pressure for these velocity conditions on STAR CCM+. In my inquiry, one of the developers mentioned the 'Great Source Method' however no documentation is available on this matte. I was hoping someone would have experience maintaining a velocity flow-field while calculating the Pressure.

Thank you.
Isn't that velocity and pressure fields inter-dependent ? (from Navier Stoke's Momentum equation)

How does this works exactly?
ashokac7 is offline   Reply With Quote

Old   October 25, 2019, 16:46
Default
  #3
New Member
 
Pierce
Join Date: May 2019
Posts: 13
Rep Power: 2
PierceH is on a distinguished road
Quote:
Originally Posted by ashokac7 View Post
Isn't that velocity and pressure fields inter-dependent ? (from Navier Stoke's Momentum equation)

How does this works exactly?

So I'm essentially wanting to solve the inviscid pressure for a viscous flowfield. The pressure fields are coupled. If you set an appropriate momentum source term you can recover the desired velocity field.
PierceH is offline   Reply With Quote

Old   October 28, 2019, 18:20
Default
  #4
New Member
 
Pierce
Join Date: May 2019
Posts: 13
Rep Power: 2
PierceH is on a distinguished road
Essentially the idea is a source term can be added to the RHS of the momentum equation. You make this quantity so much larger than the rest of the terms so that it works on solving this rather than the rest of the equation you have.
PierceH 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
Accuracy of the velocity field in a low speed wind tunnel? hob Main CFD Forum 1 April 24, 2016 15:35
''unknown radialModelType type Gidaspow'' PROBLEM WITH THE BED TUTORIAL AndoniBM OpenFOAM Running, Solving & CFD 2 March 25, 2015 19:44
Problem with rhoSimpleFoam matteo_gautero OpenFOAM Running, Solving & CFD 0 February 28, 2008 07:51
Neumann pressure BC and velocity field Antech Main CFD Forum 0 April 25, 2006 03:15
Flow field measurement in turbomachinery! Wanlai Lin Main CFD Forum 3 September 3, 1999 13:06


All times are GMT -4. The time now is 18:03.