|January 8, 2014, 13:27||
Join Date: Aug 2013
Posts: 26Rep Power: 3
In my mesh domain gives iteration didnt converge.
I am using 5 mesh block and my rotor inside 5th mesh block.
My simulaton's Physics are
- Grativy and non-inertial reference frame
gravity is z= -9.81
- Moving and simple deforming objects
gmo model activing and moving object option is implicit
- viscos and turbilance
I tried lots of things and that problem isnt about mesh domain or cell sizes, but I didnt find why simulations solvers giving iteration didnt converse.
- I tried history data, short print and long print intervals = 1e-05 or 1e-07 and selected data interval = 0.1
- i tried change mesh cell size for lots of numbers
And mine problem I think about inner mesh structure no comfirmity with inner geometry or y plus value problematic turbulence wall boundary no condition satisfied.
I need your opinions about thats parameters.
1- How can I check which one is selected? rfg turbilance model +swf or rfg turbilance model + enhanced
2-I used impicit and which one better implicit or explicit? if your ansver is explicit, Why? And What is the best option for explicit advection?
3- Can I try drop relaxation factor
Thank you for your interest
|Thread||Thread Starter||Forum||Replies||Last Post|
|eddy dissipation model: combustion doesn't occur||roukaia||FLUENT||0||December 25, 2011 14:50|
|eddy dissipation model: combustion doesn't occur||roukaia||FLUENT||0||December 24, 2011 10:10|
|Problems bout CFD model of biomass gasification, Downdraft gasifier||wanglong||FLUENT||2||November 26, 2009 00:27|
|Reynolds Stress model in CFX vs Fluent||Tim||CFX||1||October 7, 2009 06:19|
|Grid resolution for full-scale and down scaled model||gravis||Main CFD Forum||0||October 2, 2009 10:27|