CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

why does increasing mesh ruins my simulation ?

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

LinkBack Thread Tools Search this Thread Display Modes
Old   December 9, 2021, 08:35
Smile why does increasing mesh ruins my simulation ?
New Member
Join Date: Mar 2021
Posts: 16
Rep Power: 4
shatarah is on a distinguished road
Hello, can you tell me why when I increase mesh my steady fluent simulation diverges ( continuity 1e10) and gives very weird results?

I noticed that only when the mesh has a very low number of elements the simulation converges ( continuity 1e-7)and it gives a rational result.

it is a 2d convergent-divergent nozzle with ideal airflow (inviscid model)
inlet gauge total pressure is 101325 p
initial gauge pressure is 90000 p
outlet absolute pressure is 80000 p

Last edited by shatarah; December 9, 2021 at 09:53.
shatarah is offline   Reply With Quote


ansys, cfd, fluent, mesh, mesh 2d

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
foam-extend-4.1 release hjasak OpenFOAM Announcements from Other Sources 19 July 16, 2021 06:02
how to set periodic boundary conditions Ganesh FLUENT 15 November 18, 2020 07:09
Airfoil simulation solution interfered by mesh Dvergr OpenFOAM Running, Solving & CFD 1 September 28, 2014 03:05
Mesh motion with Translation & Rotation Doginal CFX 2 January 12, 2014 07:21
[snappyHexMesh] Layers:problem with curvature giulio.topazio OpenFOAM Meshing & Mesh Conversion 10 August 22, 2012 10:03

All times are GMT -4. The time now is 00:16.