|
[Sponsors] |
![]() |
![]() |
#1 |
New Member
Join Date: Jun 2022
Posts: 1
Rep Power: 0 ![]() |
Is there an easy way to run a non-newtonian laminar flow simulation (polymer melt) that brings up reliable results?
Emphasis really lays on "easy" ![]() Thanks! |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,781
Rep Power: 143 ![]() ![]() ![]() ![]() |
Yes. Give it to a CFD expert and they can do the work and give you the results. Easy.
Non-Newtonian flow is complex and adds considerable complexity both physically and numerically. If you are not an experienced CFD operator taking on a simulation which strong non-Newtonian properties is a bad idea. But note that materials which are only slightly non-Newtonian are not much harder than Newtonian materials. It is all a matter of degree.
__________________
Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum. |
|
![]() |
![]() |
![]() |
![]() |
#3 |
Senior Member
Gert-Jan
Join Date: Oct 2012
Location: Europe
Posts: 1,854
Rep Power: 27 ![]() |
I have done multiple simulations on rubber melts inside a geometry (internal flow). Depending on the question you want to answer, this works pretty well.
However, forget simulating viscoelastic effects, especially in external die flows. You'll never be able to capture this well using CFX. Then you should switch to Polyflow, or other specialized software packages. |
|
![]() |
![]() |
![]() |
Tags |
new-newtonian |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Fluent Meshing for CFX opinions | siw | CFX | 1 | April 25, 2022 06:55 |
Ask for help: CFX solution error | novice_han | CFX | 3 | December 6, 2021 07:10 |
High Resolution (CFX) vs 2nd Order Upwind (Fluent) | gravis | ANSYS | 3 | March 24, 2011 02:43 |
CFX pressure in Simulations problem | nasdak | CFX | 1 | April 14, 2010 13:22 |
PhD using CFX | Rui | CFX | 9 | May 28, 2007 05:59 |