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

Derivate Equation

Register Blogs Community New Posts Updated Threads Search

Like Tree1Likes
  • 1 Post By mi_cfd

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 16, 2015, 20:03
Default Derivate Equation
  #1
New Member
 
Fabricio
Join Date: Dec 2009
Location: Brazil - São Paulo
Posts: 28
Rep Power: 16
fabriciotb is on a distinguished road
Send a message via MSN to fabriciotb Send a message via Skype™ to fabriciotb
Hello.

I would like to know how is the more practical way to insert a partial derivate equation (dT/dx).

Thanks.
fabriciotb is offline   Reply With Quote

Old   October 17, 2015, 02:18
Default
  #2
Senior Member
 
Join Date: Nov 2010
Location: USA
Posts: 1,232
Rep Power: 24
me3840 is on a distinguished road
The only method of doing this would be to use user coding, and I'm not entirely sure if that's even possible.

You are better off using OpenFOAM for this.
me3840 is offline   Reply With Quote

Old   October 19, 2015, 19:28
Default
  #3
New Member
 
Join Date: Apr 2009
Posts: 5
Rep Power: 17
mi_cfd is on a distinguished road
You can define a user field function and use the operator grad($phi), where phi is any scalar quantity.

The resulting function is the vector: d_phi/dx i + d_phi/dy j + d_phi/dz k

So, you can then use any component of the function for further calculations.
ramakant likes this.
mi_cfd is offline   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
rotational and inviscid Mike Main CFD Forum 40 November 9, 2023 07:03
mass flow in is not equal to mass flow out saii CFX 12 March 19, 2018 06:21
Some problem of "Qcriterion.mcr& yuyuxuan Tecplot 9 February 12, 2016 04:27
Need help:about energy equation in CFX Stein CFX 4 July 2, 2009 23:31
Diffusion Equation izardy amiruddin Main CFD Forum 2 July 4, 2002 09:14


All times are GMT -4. The time now is 19:23.