Reactor Design & Thermal Hydraulics

Thermal Hydraulics

The Reactor Design and Thermal Hydraulics (RDTH) group was established in late 2019 and is led by Dr. Marcus Dahlfors. Like the rest of NFI, it operates with the support of the Sêr Cymru programme.
RDTH emphasises Reactor Physics in practical plant operation and core monitoring. Thermal-Hydraulics (T/H) is therefore devoted particular focus within the group’s activities.

Currently in a start-up phase, RDTH is looking to soon expand the group both within its central disciplines but also in the area of Control and Instrumentation. Much of our efforts are currently directed towards the ambitious THOR project, which will produce a UK unique T/H research facility.  

Meet the Team


Dr. Marcus Dahlfors

The group is led by Dr Marcus Dahlfors, reader in Nuclear Engineering.

Research Associates and Fellows

Dr. Jivan Khatry

Jivan has experience with modelling radiation heat transfer and using the RELAP5-3D software package.