Question about Chemistry Solver drop-down list in species model

- April 6, 2023 at 10:03 am
  
  Mepal
  Subscriber
  
  Hello,
  
  I am going to activate a chemical reaction in Fluent. However, I am curious about the choice I should use.
  1.      When I learned a tutorial from youtube, there was a "non-explicit source" option. But my version, 2022R2, has a "non-direct source" option.
  
  Does "non-explicit source" is "non-direct source"?
  
  2.      According to Ansys Fluent User's Guide 2022R2 page 2249, I am confused about this phrase "If you want to make explicit use of chemistry source terms in the species transport equations, without a stiff-chemistry solver, select None - Direct Source."
  Could you please explain the meaning of "use of chemistry source terms in the species transport equations"?
  Does chemistry source terms is the parameters we set in a reaction (below picture)?
  3.      What is the difference between "None - Direct Source" and "Stiff Chemistry Solver"?
  Please advise.
  Best,
- April 17, 2023 at 8:35 am
  
  Essence
  Ansys Employee
  
  Hi,
  Please refer to the user's manual provided: 46.4. Models Task Page (ansys.com)
  If you are unable to access the link, follow this Forum discussion https://forum.ansys.com/forums/topic/using-help-with-links/#latest

Viewing 1 reply thread

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