CFD Online Logo CFD Online URL
Home > Forums > Phoenics

y+ values missing for objects --plate

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

LinkBack Thread Tools Display Modes
Old   June 5, 2003, 14:38
Default y+ values missing for objects --plate
Posts: n/a
Did anyone have this problem before?

I am simulating the air flow in a small office with several blocks inside. EGWF =T. The wall, floor and ceiling are set as a plate plus a heat source(using patch and coval), which in my case is fixed temeprature. In the result file, I only found the print out of y+ for internal blocks. Those for the floor, ceiling, walls are not found. is it true that wall function is not used for the floor, ceiling and walls?

Another question, in order to let the y+ fall into 30~130, do I need to put my first grid away from the wall far enough? ( I often heard of 'to put more grids near the wall'. ) Could anyone tell me which is right? thanks in advance.

  Reply With Quote

Old   June 7, 2003, 05:59
Default try
Posts: n/a
try give a new message
  Reply With Quote

Old   June 17, 2003, 04:43
Default Re: y+ values missing for objects --plate
Posts: n/a
If you want to use the wall functions (EGWF=T), you'll have to use blocks with a thickness. Phoenics needs a grid in a block to calculate the transfer coefficients.

  Reply With Quote


Thread Tools
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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rotating objects Marcus Gellert (Gellert) OpenFOAM Running, Solving & CFD 17 December 14, 2010 16:06
finite plate --> Infinite plate??? student CFX 1 March 26, 2008 13:20
Converting objects shuo OpenFOAM 1 November 6, 2006 17:51
Parallel Plate Rheometer vs Cone & Plate beginner Main CFD Forum 0 March 19, 2003 12:49
moving objects fan jinglng Phoenics 0 August 26, 2002 03:58

All times are GMT -4. The time now is 16:52.