CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > ANSYS Meshing & Geometry

Prism layer advice needed for port flow case

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 2, 2009, 09:42
Default Prism layer advice needed for port flow case
  #1
New Member
 
Digital_Junkie
Join Date: Apr 2009
Posts: 22
Rep Power: 17
MaxCFM is on a distinguished road
Please share your insight on how to properly design prism layer strategy for steady state port flow case. Inlet/Outlet pressure differential is 6975 Pa. I'm using a realizable k-e turbulence model. The geometry is a 4-valve per cylinder (2 intake / 2 exhaust) intake port. The geometry is symmetrical so I am only modeling one half of the geometry. Intake valve OD is 37 mm. valve lift is 14 mm.

My questions are:
How can I determine desirable thickness of prism layer? Should thickness be a Percentage or Absolute?
How many layers should there be?
How should they be scaled/stretched?
How can I determine what my Y+ values should be?

Any advice you can offer would be greatly appreciated. Thank you
MaxCFM 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
boundary layer specifications for laminar flow ranjith CFX 7 October 16, 2017 09:09
Boundary Layer of Laminar Flow over a Flat Plate Blasius_Pohlhausen_Crocco Main CFD Forum 12 September 30, 2013 18:35
[Commercial meshers] TGridFluent mesh with internal by prism layer and internal face for diagnostic sponiar OpenFOAM Meshing & Mesh Conversion 2 March 30, 2009 16:02
boundary conditions for boundary layer flow A. Al-zoubi CFX 0 November 3, 2007 08:11
problem in convergence with the prism layer genera rakesh CFX 3 September 18, 2006 11:13


All times are GMT -4. The time now is 19:45.