CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums

Entries for February 2017

Register Blogs Community New Posts Updated Threads Search

Old

Inlet velocity profile using swak4Foam

Posted February 16, 2017 at 04:29 by kindle
The problem of this is that groovy can impose an inlet profile but cannot take data downstream (this is the main difficulty) and then rescale to the entry. Adding fluctuation is straight forward.

Quote:
Originally Posted by zordiack View Post
Hi, I wanted a fully developed inlet velocity profile for my 3D-case and I decided to implement it using swak4Foam since I couldn't figure out how to do it with native OpenFOAM tools. So, I thought I'd share my solution here since it took me a while to figure it out.

Please note
...
Continue reading...
New Member
Posted in Pre-processing
Views 556 Comments 0 kindle is offline Edit Tags
Old

Wall Function

Posted February 14, 2017 at 15:25 by bfox48
Quote:
Originally Posted by firb86 View Post
Does Flow 3D have a wall functions? How does the phenomenon solve when y+>5?

Best regards

When the turbulence models are turned on, then FLOW3D applies the logarithmic wall function in the cells intersecting a surface. It assumes the center of the cells is with the turbulent region of the logarithmic velocity profile, which is approx: 30<y+<1000.

Lots of explanation in the user manual.
New Member
Posted in Uncategorized
Views 819 Comments 0 bfox48 is offline Edit Tags
Page 3 of 3 12 3

All times are GMT -4. The time now is 14:18.

Contact Us - CFD Online - Privacy Statement - Top