Speaker
Description
Molecules are expected to play a critical role in the physics of detachment in tokamak divertors.
Fluid modelling of molecular species has been a longstanding and conspicuous absentee from the Hermes-3 feature list, but recent changes to the code have greatly simplified its implementation.
The handling of chemical reactions has been substantially overhauled, introducing a framework that automatically computes many of the associated source terms and allows rate data to be retrieved from arbitrary sources. These improvements have reduced the development cost of adding new reactions, paving the way for a variety of mechanisms to be added.
Here, we report on the addition of the widely-used Kotov mechanism and examine the possibility of implementing more advanced reaction networks, as well as verifying results using other exhaust codes and validating against data from devices likes MAST-U.