CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Meshing & Mesh Conversion

[mesh manipulation] Combining two meshes for AMI of rotating turbine

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

LinkBack Thread Tools Search this Thread Display Modes
Old   October 2, 2014, 03:06
Question Combining two meshes for AMI of rotating turbine
New Member
Join Date: Oct 2013
Location: Newcastle
Posts: 21
Rep Power: 12
mahtin360 is on a distinguished road

I'm working on simulating a rotating turbine using the AMI function. I've started with the propeller tutorial and adapted it step by step for my case.

However, I'm facing a problem that is in order to achieve a good representation of the AMI cylinder edges (otherwise there are problems with the AMI patch source and target weights) and the thin blade edges.

What I found is that the cylinder edges are best when using implicitFeatureSnap and the blades egdes when using implicitFeatureSnap (with surfaceFeatureExtract and eMesh file)

I thought I could mesh one case for the AMI domain and another for the turbine blades and then use the mergeMeshes utility to place the turbine blades within the AMI zone (the blockMesh domain is the same for both cases).
The AMI mesh has two regions, one covering the domain and one for the AMI and the blade mesh adds a third region when merging the meshes.

However, now I have the AMI cellzone inside the whole cylinder, and the blades inside too.
What is the best way of getting the internal cells out of the blade region?
do i have to use the stitchMesh utility? As I get the following warning
Case/AMI$ --> FOAM Warning : 
    From function polyMesh::readUpdateState polyMesh::readUpdate()
    in file meshes/polyMesh/polyMeshIO.C at line 207
    Number of patches has changed.  This may have unexpected consequences.  Proceed with care.
Has anyone similar experiences with setting up an AMI domain and complex surface in SHM?
Attached Images
File Type: jpg combined.jpg (68.9 KB, 32 views)
File Type: jpg Both.jpg (98.4 KB, 25 views)
mahtin360 is offline   Reply With Quote


ami, mergemeshes, shm, stitchmesh

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
Modelling a rotating Savonius turbine BleuBleu ANSYS 3 March 5, 2019 07:01
Best rotating model for turbine ram_call FLUENT 0 January 12, 2018 07:32
Modelling Rotating Turbine, OpenFoam17.06(v2) Windows Onyekachi OpenFOAM Running, Solving & CFD 0 November 28, 2017 02:01
Regarding a rotating turbine! UW CFX 1 May 25, 2005 18:31
Particle tracking in unsteady rotating meshes? BP Siemens 3 October 14, 2003 07:44

All times are GMT -4. The time now is 12:54.