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

[ANSYS Meshing] Proper Efficient Mesh for NACA 0012 Validation

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 18, 2019, 20:14
Smile Proper Efficient Mesh for NACA 0012 Validation
  #1
New Member
 
Anthony Tang
Join Date: Feb 2019
Posts: 7
Rep Power: 4
Antang808 is on a distinguished road
Hi guys,


I'm trying to validate a NACA 0012 for a research project but I cannot seem to get the small wall layer height for an appropriate y+ value. I followed this guide https://confluence.cornell.edu/displ...Airfoil+-+Mesh and it creates a good enough mesh for invisid flow but not Spallart-Allmarus turbulent. I am using the ansys meshing not ICEM. I know the first height cannot be above a y + value of 1 so for my chord length 1 airfoil I need a first height of around .2mm but I cannot seem to get that height below 2mm. Since I'm using a face meshing I cannot use an inflation and can't seem to get the first layer height smaller. Does anyone know how to make the first height layer smaller / create an inflation in addition to using the face mesh?


CFD online has example mesh with the inflation-like layer but I don't know how it got that. The example can be found here: https://www.cfd-online.com/Wiki/NACA0012_airfoil
Images of the mesh as of now with parameters : https://imgur.com/a/SF5uHzn


I basically have a face mesh with all edge sizings with 150 division with a strong bias but increasing the divisions or bias doesn't seem to decrease the first layer height. What can I do to get that proper Y+ value?
Antang808 is offline   Reply With Quote

Reply

Tags
ansys, fluent, mesh, naca 0012, turbulent boundary

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
sliding mesh problem in CFX Saima CFX 45 September 22, 2015 10:53
Mesh motion with Translation & Rotation Doginal CFX 2 January 12, 2014 06:21
CFX-Pre problem, pls help!!! cth_yao CFX 0 February 17, 2012 00:52
[snappyHexMesh] snappyHexMesh won't work - zeros everywhere! sc298 OpenFOAM Meshing & Mesh Conversion 2 March 27, 2011 21:11
[snappyHexMesh] external flow with snappyHexMesh chelvistero OpenFOAM Meshing & Mesh Conversion 11 January 15, 2010 19:43


All times are GMT -4. The time now is 03:09.