CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Two phase high viscosity flow

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 31, 2022, 10:11
Default Two phase high viscosity flow
  #1
New Member
 
Wesley T.
Join Date: Apr 2009
Posts: 14
Rep Power: 15
Wesley is on a distinguished road
Can somebody point me to an example case for a two phase simulation where both fluids have high apparent viscosities?

I have not been able to find an example case or tutorial with high fluid viscosities.

I think this would be an interFoam or a multiphaseInterFoam example.

Basic simulation: co-extrusion with two food streams being combined in a die assembly. In the simplest form, imagine a two color cereal piece. The two flows could have the same rheology.

Flow properties for both materials will use the power law fluid model:
k=3,000 Pa*sec^n
n=0.4
Incompressible
Laminar flow
Inlet speed will be about 0.075 m/second for the simulation I am trying to run.

Geometry:
20 mm diameter inlet, with one fluid flowing on one half, the second fluid flowing in on the other half
6 mm diameter outlet
The connection between the inlet and the outlet is a cone 20 mm in length

I have been trying to modify the interFoam tutorials, but the simulation fails. This seems to be due both to the very viscous fluids and the very low speeds of flow.

While I have used simpleFoam over the years, that is the extent of my OpenFOAM experience.

I would like to be able to simulate co-extrusion, but am not finding example cases I can modify.

Any help or suggestions are appreciated,

Wesley
Wesley is offline   Reply With Quote

Reply

Tags
extrusion, high viscosity, two phase flow

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
high calculation time while obtaining RTD during two phase flow Abhinavmaurya Main CFD Forum 0 February 9, 2022 08:50
Multiphase non-Newtonian viscosity of blood mdmtramper Fluent Multiphase 3 January 22, 2021 07:09
Discrete Phase Model, outlet mass flow rate does not fit edu_aero FLUENT 29 February 3, 2020 09:38
What viscosity to use for solid phase in VOF model redwanamit034 FLUENT 0 June 14, 2017 18:09
Mass flow rate of phase in post mat_cfd CFX 0 September 3, 2013 08:55


All times are GMT -4. The time now is 07:39.