Brown is a specialist in computational materials[1] whose work has centred on writing code in finite element, finite difference, cellular automata, Monte Carlo method and data analysis techniques.
He has had research collaborations with industry including relationships with Rolls-Royce and Airbus.
In 2010 he took over the role as the head of the Materials Research Centre, which was previously held buy Professor Valerie Randle.
[2] Brown's main research areas are in solidification, heat transfer, computational fluid dynamics, microstructure evolution, and granular flow.
[2] In 2017, Brown was elected a Fellow of the Learned Society of Wales.