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

Use of table of steam properties

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 16, 2006, 01:50
Default Use of table of steam properties
  #1
Ermanno
Guest
 
Posts: n/a
I carried out a simulation of one stage of HP steam turbine in CFX 10, using the table steam properties "SteamHP.rgp".I have the following problem:

If I use the heat transfer model "total energy" I find that the static pressure is higher than total pressure (b.c. inlet: Ptot,Ttot - b.c. outlet: mass flow rate. The values of these b.c. are the real design conditions and they are the only conditions I know).

If I use the heat transfer model "Thermal energy" the solver seems to work "correctly" and in CFX-post I find reasonable values. I can accept this transfer model for the present, because the Mach number in the throat area is 0.25 about, but does anyone know the reason of this behaviour?

Ermanno

  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
look-up table for wet steam Jiri Novak FLUENT 3 August 12, 2010 05:02
Constant velocity of the material Sas CFX 15 July 13, 2010 08:56
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
Two-Phase Buoyant Flow Issue Miguel Baritto CFX 4 August 31, 2006 12:02
steam properties rendra Main CFD Forum 5 April 13, 2000 04:05


All times are GMT -4. The time now is 00:09.