Advertisement Jump to content
Sign in to follow this  

Two-Way fluid coupling help

This topic is 1740 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts


I am trying to get my head around the two-way coupling described by R.Bridson in his book "Fluid Simulation for Computer Graphics" (page 165-167...or equivalently the paper here: chapter 3).

I am struggling in understanding how to implement the additions to the matrix beside the additions to the rhs.
It says deltaTime * J^T * Ms^-1 * J is added to the matrix but I don't quite understand what J^T and J are. I thought it would be fluid and solid fractions accordingly (divided by voxeldelta) but I am quite confused.

Is anybody able to help or understand how this equation expresses itself codewise (for example for the right face of a cell)?
Thanks in advance

Share this post

Link to post
Share on other sites
Sign in to follow this  

  • Advertisement

Important Information

By using, you agree to our community Guidelines, Terms of Use, and Privacy Policy. is your game development community. Create an account for your GameDev Portfolio and participate in the largest developer community in the games industry.

Sign me up!