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

how to set the Bousinesq assumptiong

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 5, 2005, 23:24
Default how to set the Bousinesq assumptiong
  #1
dpshaka
Guest
 
Posts: n/a
i want to simulate the natural convection problem, but how to set the bousinesq in star cd
  Reply With Quote

Old   November 8, 2005, 02:40
Default Re: how to set the Bousinesq assumptiong
  #2
natesan
Guest
 
Posts: n/a
Use isobaric option for density in the material properties menu. Specify beta there.
  Reply With Quote

Old   November 8, 2005, 21:47
Default Re: how to set the Bousinesq assumptiong
  #3
dpshaka
Guest
 
Posts: n/a
then how to set the bouyancy in the gui. regards
  Reply With Quote

Old   November 9, 2005, 13:53
Default Re: how to set the Bousinesq assumptiong
  #4
matej
Guest
 
Posts: n/a
Sorry for being rude, but simply RTFM. You can google the meaning of it, if you know how to run the internet explorer (the program to see web pages).

If you want to be succesfull with your project, you have to read the manual to the programm!!! If you cannot access the manual, your supervisor MUST give you one.

By the way, it is mush faster and easier to find answers to such a basic questions in a maunal, than asking basic questions on the forum.

Finally it is devaluating the forum and readers are likely to stop following it, if it's full of these questions answered in very understandable way in the manual and tutorials.

good luck with your computations!

matej
  Reply With Quote

Old   November 10, 2005, 05:20
Default Re: how to set the Bousinesq assumptiong
  #5
PETE
Guest
 
Posts: n/a
isobaric and beta - is it really the right way to do? I think, density should be ideal f(T) - so you have isobaric (because it is not f(t,p)) and the density depends on the ideal gas law?! beta = 1/T_amb

I also thought boussinesq means that density differences are sufficiently small to be neglected, except where they appear in terms multiplied by g - don't you define these terms in the buoyancy tab (for example only in -z?)
  Reply With Quote

Old   November 10, 2005, 07:47
Default Re: how to set the Bousinesq assumptiong
  #6
matej
Guest
 
Posts: n/a
is the following mail I got from dpshaka, or is it someone else?

have fun, matej

The following email was sent to you via the CFD Online, STAR-CD User Forum from dpshaka (ztdep@163.com) at IP address 218.25.251.168.

************************************************** *************************

Re: how to set the Bousinesq assumptiong

FUCK YOU MAMA, I HAVE SEARCHED ,BUT I HAVN'T FIND THE ANSWER, IF THE FORUM IS FULL OF THE BITCH LIKE YOU , THE FORUM WILL BE DEAD.

FUCK YOU

************************************************** *************************
  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



All times are GMT -4. The time now is 13:31.