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

Cyclone Separator steady dpm in transient solution

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

Like Tree1Likes
  • 1 Post By PulpCairns

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 2, 2016, 12:01
Default Cyclone Separator steady dpm in transient solution
  #1
New Member
 
Join Date: Jan 2016
Posts: 4
Rep Power: 8
PulpCairns is on a distinguished road
I am very new to fluent so any help would be much appreciated.

I am running an analysis of a cyclone separator. Inlet is velocity inlet, outlet is pressure outlet.

I run 200 k-e iterations before changing to 4000 RSM iterations at which point the residuals exhibit some periodic oscillations.

At this point I change to transient and reduce the timestep until convergence occurs.

If I am going to use DPM with the unsteady particle tracks function unchecked, is there a way to determine how many timesteps I need to simulate before the steady DPM solver will give a good picture of the flow to inject particles into.

Or can I inject particles at any timestep that has converged, for example the first timestep for which convergence occurs.
JUAN14 likes this.
PulpCairns is offline   Reply With Quote

Reply

Tags
cyclone separator, rsm, transient

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
Steady state solution as an initial condition for a transient problem adnanakhtar FLUENT 7 November 25, 2016 05:16
Transient simulation -> Steady state solution saisanthoshm88 CFX 3 October 31, 2014 10:29
Under Relaxation factors in a transient solution JoshuaB STAR-CCM+ 2 October 8, 2014 15:02
DPM transient injection overdefined? CeesH Fluent Multiphase 0 February 26, 2014 05:52
Static structural Analysis using temperature profile from CFX transient solution bhavik139 Structural Mechanics 3 July 7, 2013 20:51


All times are GMT -4. The time now is 23:04.