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

[ANSYS Meshing] Help needed for structured grid

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 10, 2017, 18:27
Default Help needed for structured grid
  #1
New Member
 
Join Date: Dec 2017
Posts: 8
Rep Power: 9
cfduser99 is on a distinguished road
Hello everyone,
I want to create a structured grid for a 3d hollow conical shape with a flat base using the ANSYS mesher, I'm using ANSYS Student for a paper so I don't have access to ICEM.
Can the required mesh be created using the basic mesher or not? If yes could you please guide me in the right direction?

Thank you in advance.
Attached Images
File Type: png 4.PNG (53.0 KB, 40 views)
cfduser99 is offline   Reply With Quote

Old   December 12, 2017, 03:59
Default
  #2
New Member
 
Tom David
Join Date: May 2017
Posts: 17
Rep Power: 9
TomD is on a distinguished road
It is not completely clear from the picture, but if you cut the model in half you create two sweep-able bodies which the mesher would be able to automatically recognize and mesh in a structured manner.
Don`t forget to add the two parts into a single body if you`re using Design modeler or to select "share-topology" if you are using Spaceclaim
Attached Images
File Type: png 1.PNG (61.7 KB, 27 views)

Last edited by TomD; December 12, 2017 at 10:37.
TomD is offline   Reply With Quote

Old   December 12, 2017, 17:41
Default Sweeping worked for the walls
  #3
New Member
 
Join Date: Dec 2017
Posts: 8
Rep Power: 9
cfduser99 is on a distinguished road
Quote:
Originally Posted by TomD View Post
It is not completely clear from the picture, but if you cut the model in half you create two sweep-able bodies which the mesher would be able to automatically recognize and mesh in a structured manner.
Don`t forget to add the two parts into a single body if you`re using Design modeler or to select "share-topology" if you are using Spaceclaim

Thank you!! It worked really well for the wall, now I'm trying to do the base.
Attached Images
File Type: png 3.PNG (26.3 KB, 26 views)
File Type: png 2.PNG (116.1 KB, 24 views)
File Type: png 1.PNG (106.5 KB, 24 views)
cfduser99 is offline   Reply With Quote

Old   October 7, 2018, 16:32
Default Problem for structured cone meshing
  #4
New Member
 
Join Date: Aug 2018
Posts: 2
Rep Power: 0
BrunoCFD is on a distinguished road
Hello everyone,
i have almost the same geometry and i did manage to create a structured grid with ANSYS Meshing (Student Ver 19.1). However i am not satisfied because it is creating Elements of high skewness (0.6 and bigger) near the wall region. Is there any other approach to avoid this?


My Meshing approach is as follows:
1.Splitting the domain into two parts. Meshing both of them in the same way, like it was suggested above.

2.Creating a cylinder part in the center of the cone /half cone.
3.Splitting the clyinder in different parts to enable structured meshing
4.Starting to mesh the cylinder parts by using face mesh and sweep method
5.Meshing the outer body which surrounds the cylinder by multizone meshing


In Spaceclaim all bodies are in one component and shared topology is enabled. It would be great if someone could help me out!
Best Regrads


Bruno


geometry: https://imgur.com/GHnZzGb
meshing so far: https://imgur.com/mi548fH
skewed elements: https://imgur.com/6rLZka0
BrunoCFD is offline   Reply With Quote

Reply

Tags
ansys, cfd, fluent, mesh, structured


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
Dynamic Mesh resulting in Curved Grid Lines adubois FLUENT 3 April 17, 2014 11:06
PBC breaks down, is there a grid check tool? gerritgroot SU2 8 June 13, 2013 19:24
Obtain Geometry Data from a Grid File in CFX 10.0 ARJUN CFX 2 August 17, 2006 08:20
Troubles modelling flow through a grid Hans Klaufus CFX 1 June 28, 2000 17:43
Numerical methods for discontinuous grid interfaces? Hansong Hang Main CFD Forum 12 September 16, 1998 23:26


All times are GMT -4. The time now is 14:08.