CFD Online URL
[Sponsors]
Home > Forums > FLUENT

CFD simulation in Fluent of a tracer gas decay

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 7, 2009, 06:32
Post CFD simulation in Fluent of a tracer gas decay
  #1
New Member
 
Esteban José Baeza Romero
Join Date: Oct 2009
Posts: 1
Rep Power: 0
estebicanjose is on a distinguished road
Dear colleagues,

I have made experimental measurements of the natural ventilation rate of a greenhouse with vents open, using the tracer gas technique decay rate method for certain outside wind conditions, and I want to validate the experimental results reproducing the experiment in Fluent 6.1. In the literature, authors propose to obtain a steady state solution of the natural ventilation problem (flow and momentum)until convergence, and then perform a transient simulation activating the multiphase (non reacting) model and adding a new species (N2O), giving a cocentration equal to unit in all the cells insidet the greenhouse and zero in all the cells outside the greenhouse. I tried this but I do not get the expected exponential decay after a number of time steps...Would anybody be so kind to give me a step by step procedure for this problem? Thanks a lot in advance
estebicanjose is offline   Reply With Quote

Old   August 28, 2010, 08:09
Default
  #2
Senior Member
 
Join Date: Jul 2009
Posts: 207
Rep Power: 8
kingjewel1 is on a distinguished road
Quote:
Originally Posted by estebicanjose View Post
Dear colleagues,

I have made experimental measurements of the natural ventilation rate of a greenhouse with vents open, using the tracer gas technique decay rate method for certain outside wind conditions, and I want to validate the experimental results reproducing the experiment in Fluent 6.1. In the literature, authors propose to obtain a steady state solution of the natural ventilation problem (flow and momentum)until convergence, and then perform a transient simulation activating the multiphase (non reacting) model and adding a new species (N2O), giving a cocentration equal to unit in all the cells insidet the greenhouse and zero in all the cells outside the greenhouse. I tried this but I do not get the expected exponential decay after a number of time steps...Would anybody be so kind to give me a step by step procedure for this problem? Thanks a lot in advance
Hola Esteban,

Estoy intentando hacer algo muy similar a lo que describe usted. ¿Al final lo logró en FLUENT? ¿Cómo lo hizo con N2O?
Espero que tenga un rato para explicarnoslo por favor.
kingjewel1 is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
What do you CFD guys do during a long simulation running? bearcat Main CFD Forum 5 July 23, 2009 09:08
Help required for CFD simulation of Trayed Bubble Column using Fluent art705 Main CFD Forum 0 July 15, 2009 05:04
Convert existing Star-CD simulation to FLUENT Lam FLUENT 3 June 10, 2003 13:00
Car/Truck traffic Simulation with CFD ?? Thierry FLUENT 2 April 10, 2003 19:48
Where do we go from here? CFD in 2001 John C. Chien Main CFD Forum 36 January 24, 2001 22:10


All times are GMT -4. The time now is 18:49.