CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Native Meshers: blockMesh

SimpleSpline problem

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

Reply
 
LinkBack Thread Tools Display Modes
Old   December 4, 2008, 09:10
Default Hi, a little tip: replac
  #1
Senior Member
 
Wolfgang Heydlauff
Join Date: Mar 2009
Location: Germany
Posts: 136
Rep Power: 8
wolle1982 is on a distinguished road
Hi,

a little tip:

replace the "simpleSpline" with "polySpline". add the start and end vector and afterwards a ";".

It must look like this:
================================
polySpline 2 14
(
(point1)
(point2)
(point3)
)
(0 0 0) (0 0 0);
===============================

blockMesh it. there will be an error. but it writes you the points out, that the polySpline would want to have. copy-paste them into blockMeshDict and replace the "polySpline" no with a "polyLine".
...maybe this is accurate enough for you.

I personally thin, there still is a bug in the polyLine. But till it is solved maybe you come along with my idea.

Greetz.
wolle1982 is offline   Reply With Quote

Old   December 9, 2008, 05:31
Default Thank you. I will try with f
  #2
New Member
 
Mattia de\' Michieli Vitturi
Join Date: Mar 2009
Posts: 23
Rep Power: 8
demichie is on a distinguished road
Thank you.
I will try with following your tip.

Mattia
demichie is offline   Reply With Quote

Old   November 6, 2009, 10:49
Question Hmm...
  #3
New Member
 
Ivan Golod
Join Date: Nov 2009
Posts: 3
Rep Power: 7
kokashking is on a distinguished road
Hallo

as I understood, there are some problems with simpleSpline in openFOAM 1.5 too.

with simpleSpline I got good shape, but the grid of cells is wrong. (i have also tried to change simpleGrading)
then I have made this trick with polySpline error and got a normal grid.

But for my algorithm use of this trick, that is based or error, is not the best way.
So I have a question to the people, who have more experience with openFOAM. Can I solve this problem with blockMesh, OF 1.6 or it's better to use some others pre-processors like Gmsh?

TIA

Ivan

simpleSpline.jpg

polyLine.jpg

blockMeshDict_simpleSpline.txt
kokashking is offline   Reply With Quote

Old   December 10, 2009, 20:20
Default
  #4
Senior Member
 
Eric Nutsch
Join Date: Sep 2009
Location: Eugene, Oregon USA
Posts: 112
Rep Power: 7
ericnutsch is on a distinguished road
Send a message via Skype™ to ericnutsch
I have run into the same problem, and haven't gotten to far in the other threads either:
How to use the spline commands
Problem Meshing Airfoil

I am going to attempt to use gmsh. I was previously going to use netgen, but it cant regulate the cell size properly for cfd(good for FEA just not CFD).

Good Luck!
ericnutsch is offline   Reply With Quote

Reply

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
Is simpleSpline working in OpenFOAM11 sampaio OpenFOAM Native Meshers: blockMesh 4 November 2, 2011 03:58
Problem in Modelling Heat Transfer Problem Deepak R FLUENT 1 December 6, 2007 10:37
Problem in cavity flow problem saad Main CFD Forum 4 November 1, 2007 08:45
Problem in Tutorial problem of fluent Phanindra FLUENT 5 April 17, 2007 09:57
problem in solving "wave generation" problem san FLUENT 2 April 3, 2006 23:37


All times are GMT -4. The time now is 09:05.