CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > CFX

Problem Using Algebraic Slip Model (ASM)

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 20, 2012, 04:48
Default Problem Using Algebraic Slip Model (ASM)
  #1
Member
 
Hamed
Join Date: Oct 2009
Posts: 64
Rep Power: 16
safikhani_hamed is on a distinguished road
Dear friends,
I am modeling a gas-solid twophase flow using ASM , in fact in my simulations the solid particles drop at the bottom of pipe very soon and it is clear that the simulation is not correct because when I change the solid density or solid diameter, the simulation does not change , please help me what is the problem ?

sincerely
safikhani_hamed is offline   Reply With Quote

Old   September 20, 2012, 08:29
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,665
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
Are you sure you implemented the different density and diameter correctly? Are you in a flow regime where it is not sensitive to diameter or density? Is your simulation fully converged? Are you interpreting the results correctly?
ghorrocks is offline   Reply With Quote

Old   September 20, 2012, 16:46
Default
  #3
Member
 
Hamed
Join Date: Oct 2009
Posts: 64
Rep Power: 16
safikhani_hamed is on a distinguished road
Dear friend,
In fact yes the simulation is fully converged, but I do not why suddenly the solid particles drop to the bottom of the pipe. Is there any tutorial about ASM model ?


sincerely
safikhani_hamed is offline   Reply With Quote

Old   September 24, 2012, 22:56
Default
  #4
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,665
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
You could be in a regime where the density and diameter does nto make much difference, you have to do much larger changes to have an effect.
ghorrocks is offline   Reply With Quote

Reply

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
simpleFoam: Problem with k-omega Model near Wall okroud OpenFOAM Running, Solving & CFD 0 June 13, 2012 11:13
Problem with the k-omega model Joachim Main CFD Forum 1 March 9, 2012 15:56
Algebraic slip model - literature or papers! karthik1414 Main CFD Forum 0 June 28, 2011 05:15
Problem in Buoyancy Model? dhrubo CFX 3 June 5, 2010 06:32
Polyflow Simulation with ViscoElastic Model memory problem sid2909 FLUENT 0 May 10, 2010 06:29


All times are GMT -4. The time now is 03:57.