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

GRAVITY EFFECT IN CFX-5.5

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 24, 2002, 16:10
Default GRAVITY EFFECT IN CFX-5.5
  #1
alexander
Guest
 
Posts: n/a
hi everybody, my question is how can I take in count the effect of gravity in cfx-5.5, my computational model is just fluid flow (momentum and turbulence,,

thanks

best regards

alexander
  Reply With Quote

Old   September 24, 2002, 16:50
Default Re: GRAVITY EFFECT IN CFX-5.5
  #2
Luis Bustamante
Guest
 
Posts: n/a
tienes que utilizar un modelo de turbulencia adecuado, yo he utiliazdo el modelo k-e y el modelo RNG k-e y siempre me ha resultado bien.

Saludos Luis
  Reply With Quote

Old   September 24, 2002, 17:19
Default Re: GRAVITY EFFECT IN CFX-5.5
  #3
alexander
Guest
 
Posts: n/a
gracias luis por contestar, estoy utilizando el modelo k-e, esta es una simulacion de flujo de fluidos, no hay trasferencia de calor en ella, pero quiero saber como se activa la gravedad para este tipo de simulaciones, se que se pueden fijar los valores de gravedad cuando utilizo el modelo de enegia total, pero como hago para fijar la gravedad en un modelo sin transferencia de calor en cfx 5.5. tambien quiero saber si la presion de referencia que uno fija en el dominio esta relacionada o depende de la ubicacion del sistema de coordenadas (coord 0.0) para mi caso. en otra palabras la distribucion de presion que obtengo depende de este sistema de coordenadas

gracias chamo le agradeceria su ayuda
  Reply With Quote

Old   September 25, 2002, 02:00
Default Re: GRAVITY EFFECT IN CFX-5.5
  #4
Astrid
Guest
 
Posts: n/a
Hispanola's,

please use English in this forum. You can communicate in Spanish in your e-mails, as you seem to know each other.

Astrid
  Reply With Quote

Old   September 27, 2002, 02:15
Default Re: GRAVITY EFFECT IN CFX-5.5
  #5
Holidays
Guest
 
Posts: n/a
In multiphase, and/or heat transfer cases use buoyancy to set up a differential body force.
  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
Including Gravity Effect in turbFOAM Eslam Reda OpenFOAM Running, Solving & CFD 0 October 19, 2009 14:23
CFX 5.5 how to make it rotate? Marco CFX 1 November 11, 2004 17:35
Radiation CFX 5.5 Mate CFX 3 March 21, 2003 02:44
CFX 5.5 Boundary condition Veebs CFX 5 May 19, 2002 20:55
CFX 5.5 volume meshing error Bogesz CFX 0 May 12, 2002 13:19


All times are GMT -4. The time now is 18:48.