Circular or “ring manifolds” are used to solve a variety of problems, from feeding fuel and/or oxidizer into an axially symmetric combustion chamber where there is one inlet and multiple outlets, to water fountains with multiple inlets.

ring manifold in TD/FloCAD

Assuming that you have read about modeling “normal” manifolds, and that you are familiar with FloCAD pipes, you might be wondering why it would present any challenge to model a closed circuit such as those shown above. The answer is that it isn’t difficult to address, but it isn’t automatic either.

This sample problem demonstrations methods for "closing the loop:" making both ends of a single Pipe connect like an ouroboros: a self-eating snake. It also discusses challenges associated with modeling the priming of such a loop using flat-front methods.

Click here to visit our Tips and Samples page, which includes links to the detailed problem description and drawing files in the CRTech User Forum.