CFD Online Logo CFD Online URL
Home > Forums > FLUENT

UDF sources for energy equation

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

LinkBack Thread Tools Display Modes
Old   July 1, 2005, 08:38
Default UDF sources for energy equation
Posts: n/a
Dear all, Who can help me? I study flow in 2D geometry (plane channel) with zero- initial and boundary conditions (velocity=0, temperature=300K at the inlet and at the channel end). I add a source to the energy equation in the form of -coskx. As a result I get temperature distribution along the channel in the form of -coskx. However, if solving analytically, the result will be +coskx, because only second derivative of temperature with respect to y (or r in axisymmetrical case)remains in equation and the derivative and the source enter the same side of the equation. el
  Reply With Quote


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
UDF for wall slipping HFLUENT Fluent UDF and Scheme Programming 0 April 27, 2011 12:03
Viscosity and the Energy Equation Rich Main CFD Forum 0 December 16, 2009 15:01
udf for claussius claypereon equation. Anbazhagan R FLUENT 0 February 21, 2007 07:19
Transport equation using UDF wassim FLUENT 5 February 14, 2007 23:56
UDF sourse term for VOF equation ROOZBEH FLUENT 5 April 22, 2003 06:56

All times are GMT -4. The time now is 12:33.