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

cyclone pressure drop - reg

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 1, 2006, 10:32
Default cyclone pressure drop - reg
  #1
Subramanian.J
Guest
 
Posts: n/a
Hai to all,

I am doing cyclone separator simulation with inert particle tracking with full hexa mesh. I am not getting the required pressure drop for converged solution(up to 10e-6 residuals)

I am using RSM model and Boundary conditions are velocity inlet and pressure outlet (1 atm) for vortex and bottom as wall.

SIMPLE for pressure velocity coupling and in discretization PRESTO for pressure and all others are second order.

For 20 m/s velcity inlet I should get 1200Pa pressure drop(Total Pressure). But I am getting only 550 - 600 pa.

What should i do for getting the correct pressure drop.

  Reply With Quote

Old   December 21, 2006, 04:04
Default Re: cyclone pressure drop - reg
  #2
wayne
Guest
 
Posts: n/a
why do you choose the wall for the underflow? is there any suitbale method to define boudary condition of the both underflow and overflow? thanks
  Reply With Quote

Old   December 22, 2006, 06:34
Default Re: cyclone pressure drop - reg
  #3
Subramanian
Guest
 
Posts: n/a
Hai,

My practical situation of cyclone separator is like that. So I chose the wall for underflow. For particles, it is outflow.

With regards JSM

  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
pressure drop in the pipe mike.mm FLUENT 6 February 7, 2011 11:31
Pipe Flow - Pressure Drop Daniel L FLOW-3D 2 December 10, 2010 05:23
Pressure Drop at entrance of a rotor-stator. Resnick Main CFD Forum 0 November 20, 2007 15:50
Does star cd takes reference pressure? monica Siemens 1 April 19, 2007 12:26
what the result is negatif pressure at inlet chong chee nan FLUENT 0 December 29, 2001 06:13


All times are GMT -4. The time now is 07:18.