Divergence of velocity vector in source term UDF

- December 7, 2019 at 7:46 am
  
  scholar
  Subscriber
  
  Hello everyone,
  
  How to write/access the divergence of velocity vector present in source term UDF (DEFINE_SOURCE). The source term is for granular temperature equation. To add source term for momentum conservation we can add xmomentum, ymomemtum, and zmomentum source terms where the gradient of velocities can be directly called. But for granular temperature equation, to add source, there is no option to add x, y, z components. The divergence of the vector is to be used directly. So how to write the divergence of vector?
  
  The source term equation which has divergence of velocity vector is enclosed for reference. i,j present in the equation are for different phases

Viewing 0 reply threads

You must be logged in to reply to this topic.

Ansys Innovation Space

Boost Ansys Fluent Simulations with AWS

Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.

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