CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Pre-Processing

patching solid particles in a fluidized bed in OpenFoam

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 7, 2021, 16:20
Default patching solid particles in a fluidized bed in OpenFoam
  #1
New Member
 
fredrick
Join Date: Apr 2015
Location: China
Posts: 15
Rep Power: 11
fredrick is on a distinguished road
Greeting every one.
I have a case I want to work with in OpenFoam. The case is attached
It imitates a fluidized bed. I have done a quarter of a cylinder to save on computational time.
I have to issues I would want your help.
1. I want to patch the region between (0 0.1 0) and (0, 0.3 0) with solid particles of volume fraction 0.6 and this is the code I use in the setFields Dic
defaultFieldValues
(
volScalarFieldValue alpha.air 1
volScalarFieldValue alpha.particles 0
);
regions
(
cylinderToCell
{
p1 (0 0.1 0);
p2 ( 0 0.3 0);
radius 0.055; //radius of the cylinder
fieldValues
(
volScalarFieldValue alpha.air 0.4
volScalarFieldValue alpha.particles 0.6
); } );
Is this the right way to patch (ie. Using cylinderToCell command)?
2. I also do not want the particles to move to the region below (0 0.1 0);
How do I go about this? Ie limiting the solid volume fraction and hence velocity at 0 in this region at all time during simulation time. Do I still set the values in setFields Dic and how? Thank you
Attached Images
File Type: jpg cylinder.jpg (59.4 KB, 16 views)

Last edited by fredrick; April 7, 2021 at 16:24. Reason: to reduce the font
fredrick is offline   Reply With Quote

Old   April 8, 2021, 04:47
Post How to define Time varying k - epsilon parameter?
  #2
New Member
 
Jeonggwan Han
Join Date: Feb 2021
Posts: 1
Rep Power: 0
jkhan is on a distinguished road
i am sorry i replied by mistake
jkhan is offline   Reply With Quote

Reply

Tags
fluidized bed, openfoam, patching, set fields, volume fraction


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
Error - Solar absorber - Solar Thermal Radiation MichaelK CFX 12 September 1, 2016 06:15
Add lagrangian particles to OpenFoam solver luchen2408 OpenFOAM 0 June 2, 2015 04:10
gas solid flow in circulating fluidized bed with different gas velocity kongl1986 FLUENT 2 April 5, 2012 23:23
New OpenFOAM Forum Structure jola OpenFOAM 2 October 19, 2011 07:55
CFX4.3 -build analysis form Chie Min CFX 5 July 13, 2001 00:19


All times are GMT -4. The time now is 13:01.