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

Stagnation enthalpy vs. static enthalpy?

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 3, 2004, 08:17
Default Stagnation enthalpy vs. static enthalpy?
  #1
BK
Guest
 
Posts: n/a
My case is transient, supersonic( inviscid flow), compressible flow. In methodology of STAR-CD, "stagnation enthalpy" is recommened as thermal calcualation. And we must determine stagnation temperature. But in my case temperature in INLET is varied from 300 to 5000K. How do I determine stagnation temperature? So, I used the "thermal enthalpy" option about above case. Isn't this result resonable?
  Reply With Quote

Old   March 3, 2004, 09:25
Default Re: Stagnation enthalpy vs. static enthalpy?
  #2
Richard
Guest
 
Posts: n/a
You should obtain good results with thermal enthalpy. Since the flow is high-speed, I would suggest total enthalpy, but I doubt the results will be much different. I don't think you can use stagnation enthalpy unless all the inflow boundaries have the same total enthalpy, which they don't in your case.
  Reply With Quote

Old   March 3, 2004, 22:29
Default Re: Stagnation enthalpy vs. static enthalpy?
  #3
BK
Guest
 
Posts: n/a
Thank you for kind answer, Richard.
  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


Similar Threads
Thread Thread Starter Forum Replies Last Post
static enthalpy computation in cfx Ben Akih CFX 7 April 19, 2018 07:23
can I use static enthalpy gradient to describe dT Jay CFX 0 August 7, 2008 00:01
dp/dt, udp/dx terms in static enthalpy equation CFDtoy Main CFD Forum 0 April 13, 2007 11:41
Rothalpy or static enthalpy ? Denizen Siemens 0 January 29, 2007 03:43
meaning static enthalpy and total enthalpy mspark Siemens 1 April 1, 2004 07:20


All times are GMT -4. The time now is 06:08.