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

Mat. prop. vs Temperature curve approximation

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 14, 2006, 08:07
Default Mat. prop. vs Temperature curve approximation
  #1
Attila
Guest
 
Posts: n/a
Hi,

I want to use the "Expressions" part in the CFX Pre to determine for instance the density vs temperature curve of water! I divided the whole curve in two part and I tried to approximate them by 5th and 6th order polinomes but between the measured points there are unplesaent oscillation! I think (and I experienced too)they cause inconvergency? What sould I do? How can I complete this problem?

Thanks in advence!

Attila
  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
Problem with zeroGradient wall BC for temperature - Total temperature loss cboss OpenFOAM 10 March 5, 2015 07:57
Calculation of the Governing Equations Mihail CFX 7 September 7, 2014 06:27
[ICEM] Problems with coedge curves and surfaces tommymoose ANSYS Meshing & Geometry 0 August 5, 2011 16:02
FIDAP and temperature dependent mat properties semetay FLUENT 0 July 11, 2006 13:45
CFX4.3 -build analysis form Chie Min CFX 5 July 12, 2001 23:19


All times are GMT -4. The time now is 08:58.