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

phase changing process in subroutine..

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 26, 2004, 12:16
Default phase changing process in subroutine..
  #1
mspark
Guest
 
Posts: n/a
Hi all I am studying the phase changing(heat exchanger problem) algorism in star-cd. Adapco-online.com shows the introduction of heat exchanger in detail. However, as you know, the calculation and change of QUALITY in each temperatures and pressure with the specific volume, enthalpy, entropy or mass. i just know the relationships below. How can i get QUALITY wit those properties

v=v_f+x*(v_g-v_f) or h=h_f+x*(h_g-h_f) or x=(m_g)/(m_g+m_f)

where x=quality v_g(specific volume of satureted vapor) v_f(specific volume of satureted luqiid) h_g(enphalpy of satureted vapor) v_f(enphalpy of satureted luqiid) m_g(mass of satureted vapor) m_f(mass of satureted liquid)

  Reply With Quote

Reply


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


Similar Threads
Thread Thread Starter Forum Replies Last Post
phase change process shen qingqing FLUENT 0 September 7, 2008 10:29
Changing RPM Amir Hossein Birjandi FLUENT 2 March 4, 2008 01:51
subroutine for phase change Mac Siemens 0 November 6, 2006 05:48
phase changing simulation David Liu Main CFD Forum 3 October 25, 2004 02:43
Phase change process Sang-jin Lee Siemens 5 December 5, 2001 06:17


All times are GMT -4. The time now is 08:57.