Define a UDF source term in Curvilinear coordinate system

- August 10, 2017 at 7:46 pm
  
  alinik64
  Subscriber
  
  Hi all,
  
  I am writing a UDF and I have came across a particular problem.
  
  I have a curved channel and would like to define a source terms for a scalar, like TKE. For some reason it is more convenient for us to define the source term in a curvilinear coordinate system rather than the Cartesian coordinate system. In the mathematical description of the source, we have derivatives of some flow quantities, like velocity, in curvilinear CS.
  
  my question is does fluent allow us to write derivatives in a curvilinear coordinate system or we have to transform this CS to Cartesian CS?
  
  Any kind of help is much appreciated and acknowledged.
  
  Thanks,
  
  Ali

Viewing 0 reply threads

You must be logged in to reply to this topic.

Ansys Innovation Space

Earth Rescue – An Ansys Online Series

The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.

Ansys Blog

Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.

Trending discussions