CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

Local surface mesher remeshing unchanged geometries

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 10, 2020, 03:45
Question Local surface mesher remeshing unchanged geometries
  #1
New Member
 
Frank
Join Date: Apr 2020
Posts: 2
Rep Power: 0
schafran is on a distinguished road
I have the issue where the automated mesh operation (remesher) with local surface mesh turned on creates a new mesh for totally unchanged geometries.

So I have a part based meshing pipeline where I imported half car surfaces and duplicated them. I use a transform operation to mirror the duplicates to get the full car. I then zip all the surfaces and the domain to get a closed manifold surface of my problem. The zip operation is set to 'New Description - Discrete' (I also tried with 'New Part - CAD'). I then use the remesher with local surface meshing turned on and local extents for each car part with the goal of only remeshing parts of the car that got changed (replaced by new geometries).

When I swap out the front wing geometry (with the same parasolid file for now) but leave everything else untouched, it seems like it is remeshing much more than just the front wing and the mesh on the chassis even change slightly (see image below).Have you encountered anything like this before and know a solution?

It is worth mentioning that I use filters (dynamic queries) to select the input parts for the part operations (mostly 'tag contains ... ')
I am using STAR-CCM+ v2020.1 on Windows 10

IMAGES: https://imgur.com/a/ECWYV6u
schafran is offline   Reply With Quote

Reply

Tags
local, remesh, surface meshing


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
[ICEM] Problems with coedge curves and surfaces tommymoose ANSYS Meshing & Geometry 6 December 1, 2020 12:12
Stuck in a Rut- interDyMFoam! xoitx OpenFOAM Running, Solving & CFD 14 March 25, 2016 08:09
Cluster ID's not contiguous in compute-nodes domain. ??? Shogan FLUENT 1 May 28, 2014 16:03
[blockMesh] BlockMeshmergePatchPairs hjasak OpenFOAM Meshing & Mesh Conversion 11 August 15, 2008 08:36
CFX4.3 -build analysis form Chie Min CFX 5 July 13, 2001 00:19


All times are GMT -4. The time now is 22:49.