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

Help with 2d mesh with complex curve (fluent)

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 29, 2021, 14:40
Exclamation Help with 2d mesh with complex curve (fluent)
  #1
New Member
 
Lucas Lima
Join Date: Jan 2021
Posts: 2
Rep Power: 0
NanoR4K is on a distinguished road
Good morning CFD online, i've been trying to simulate the performance of a rocket combustion chamber+nozzle, but unfortunely the simulation always tend to make the resiuduals jump after (90-500itr), so i assume this is due to the mesh quality, since the nothing seems to fix it.

im almost sure this instabilities derive from a certain spot on the mesh, more precisely where the converging part of the nozzle starts:

https://www.cfd-online.com/Forums/at...1&d=1611949127

i cannot find any information on how to reduce this section's skewness.

Looking forward to fix this issue !
Attached Images
File Type: jpeg WhatsApp Image 2021-01-29 at 4.38.14 PM.jpeg (180.6 KB, 5 views)
NanoR4K is offline   Reply With Quote

Reply

Tags
2d., mesh and fluent, mesh angle, skewed cells

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
OpenFOAM error Vinay Kumar V Main CFD Forum 0 February 20, 2020 09:17
FLUENT adding mesh nodes problem when importing 3D mesh from ICEM guxin7005 FLUENT 2 June 27, 2016 21:41
Lift and Drag pattern change wit FLUENT 16 and 13 PISO for same mesh n solver setting arunraj FLUENT 0 June 2, 2016 22:58
[Other] Pointwise Mesh into Fluent - Error: "Divergence detected in AMG solver: ads-0." kyles.sverige ANSYS Meshing & Geometry 3 January 27, 2015 12:28
Moving mesh Niklas Wikstrom (Wikstrom) OpenFOAM Running, Solving & CFD 122 June 15, 2014 06:20


All times are GMT -4. The time now is 21:43.