CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT > Fluent UDF and Scheme Programming

Axisymmetric UDF, source terms in cylindrical coordinates

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 3, 2022, 07:30
Default Axisymmetric UDF, source terms in cylindrical coordinates
  #1
New Member
 
Manuel
Join Date: Apr 2022
Posts: 1
Rep Power: 0
manuel.schieder is on a distinguished road
Hello CFD Online Community!

I am simulating a flow through an axisymmetric geometry and therefore I use the axisymmetric solver in ANSYS Fluent. For my problem I need to solve the enthalpy based Energy Equation and therefore I use a UDF. In this UDF source terms occur which have the divergence of the velocity and also partial derivatives of the velocity components. So now my question is: Do I need to implement these source terms in cylindrical coordinates or can Fluent transorm the cartesian implementation?

As an example the implementation of the divergence of the velocity in 2D cartesian:
C_U_G(c,t)[0]+C_V_G(c,t)[1]

If some of you also know how to define the divergence in cylindrcal coordinates for the UDF I would be very happy.

Best regards,
Manuel
manuel.schieder is offline   Reply With Quote

Reply

Tags
axisymmetric, cylindrical coordinates, fluent, source term, udf

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
Difference in Source term of UDF for cylindrical coordinates compare to cartesian chinu007 Fluent UDF and Scheme Programming 0 November 2, 2020 05:10
[foam-extend.org] Problems installing foam-extend-4.0 on openSUSE 42.2 and Ubuntu 16.04 ordinary OpenFOAM Installation 19 September 3, 2019 19:13
Mass source term definition in UDF for an axisymmetric problem adnanakhtar Fluent UDF and Scheme Programming 0 February 19, 2015 19:18
"parabolicVelocity" in OpenFoam 2.1.0 ? sawyer86 OpenFOAM Running, Solving & CFD 21 February 7, 2012 12:44
DxFoam reader update hjasak OpenFOAM Post-Processing 69 April 24, 2008 02:24


All times are GMT -4. The time now is 19:54.