|April 19, 2006, 10:42||
Non-Newtonian Fluid in FLUENT.
Can anyone help me with setting up a flow problem in a pipe for a non-newtonian fluid (e.g. with a yield stress). Any tutorial will be appreciated.
|August 30, 2009, 15:18||
Join Date: Aug 2009
Posts: 2Rep Power: 0
For laminar flow in Fluent: Choose Laminar turbulence model in viscosity, select liquid water in materials, change name, use drop down menu under viscosity and select non-Newtonian model you desire: power law, Carreau, Herschel-Buckley, or Cross model. Calculate.
For turbulent flow in Fluent: First select a turbulence model (ke, ke realizable, etc.), then use text command to go through menus as follows:
/define/models/viscous/turbulent-expert then answer yes to enable turbulence for non-Newtonian fluids
Now select a liquid material and the non-Newtonian options will appear under the viscous property listing. Calculate.
There has been very little published using the non-Newtonian turbulence options; hence, there is no assurance that the model results are actually realistic! I suggest doing some validation for yourself on pipe flow, jets, or wall layers.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Connecting two fluid zones in Ansys Fluent 12||izumi11||FLUENT||22||June 6, 2015 03:34|
|Water subcooled boiling||Attesz||CFX||7||January 5, 2013 04:32|
|Fluent jobs through pbs||ibnkureshi||FLUENT||5||June 9, 2011 13:43|
|fluent udf, getting fluid density||mohsen zendehbad||FLUENT||5||January 29, 2010 13:26|
|numerical modelling of non newtonian fluid (blood)||Deepak Thirumurthy||Main CFD Forum||1||May 14, 2006 02:14|