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

Mesh Morpher/ Optimizer for drag reduction - control point movement

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 23, 2013, 12:26
Default Mesh Morpher/ Optimizer for drag reduction - control point movement
  #1
New Member
 
John
Join Date: May 2013
Location: UK
Posts: 4
Rep Power: 13
J_Mann is on a distinguished road
Hello all,

I am currently running a simulation on a 3D wing and have made a few manual design iterations simply by changing a CAD file and re-meshing from scratch. I am now trying to use the new mesh optimization in Fluent 14 by selecting parameters as the objective function.

The main part I don't understand is that when you have created the region that is going to change (or morph) with a number of control points you then have to define the scale and direction (deform tab) to move each control point.

Why is this necessary if you have no movement constraints on the surfaces you wish to deform? Is it just to start an iterative geometric shape change or does it constrain the morphing somehow?

Any advice would be much appreciated as I have no support from Ansys and this topic is very hard to find advice on elsewhere!

Thanks,
John
J_Mann is offline   Reply With Quote

Old   October 25, 2013, 06:38
Default
  #2
New Member
 
Mads
Join Date: Feb 2013
Posts: 4
Rep Power: 13
Mobz is on a distinguished road
Hi John

Im like you also trying to figure out how to use the Mesh Morpher/ Optimizer in Fluent.

Do you have any luck with it?
Everytime I try I get an error saying that I have left-handed-faces nodes in my mesh
Mobz is offline   Reply With Quote

Old   October 25, 2013, 16:29
Default
  #3
New Member
 
John
Join Date: May 2013
Location: UK
Posts: 4
Rep Power: 13
J_Mann is on a distinguished road
Hi,

No I had to move onto something else I'm afraid. I think left handed faces means essentially the mesh has become inverted somewhere so it's moved too far in one design iteration. If you reduce that it might help? Not sure but could be worth trying.

Good luck and let me know if it works I'll be picking it up again in a couple of months so could do with the advice!
J_Mann is offline   Reply With Quote

Reply

Tags
control points, mesh morpher, optimize, optimizer, shape optimize


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
Moving mesh Niklas Wikstrom (Wikstrom) OpenFOAM Running, Solving & CFD 122 June 15, 2014 07:20
[ICEM] Problem making structured mesh on a surface froztbear ANSYS Meshing & Geometry 4 November 10, 2011 09:52
Convergence moving mesh lr103476 OpenFOAM Running, Solving & CFD 30 November 19, 2007 15:09
How to mesh the 1st grid point? Daniel Main CFD Forum 1 October 8, 2007 03:27
Icemcfd 11: Loss of mesh from surface mesh option? Joe CFX 2 March 26, 2007 19:10


All times are GMT -4. The time now is 11:38.