Research Aims

I use and investigate large scale simulations in high-performance computing environments. In doing so, I look for generalized ways to make large scale simulations simpler, more relevant, more flexible and more efficient. I have a particular preference for multiscale or multi-model simulations, where effective combination of existing codes is the method of choice for addressing new science questions.

Research Topics

Modelling and simulation Multiscale computing High performance computing Research automation

Distributed/Grid computing Simulation development approaches

Forced migration and refugee movements Policy decisions and conflict evolution Infection spread Computational policy-making and community awareness-raising

Brain bloodflow Clay-polymer nanocomposites Star clusters Cosmological dark matter

Agent-based modelling

N-body methods lattice-Boltzmann methods Molecular dynamics Parallel-in-time methods


Hamid Arabnejad is a Post-doctoral Research Fellow, working on the VECMA project, which is led by Derek Groen. He holds a PHD in computer science from Faculty of Engineering of the University of Porto (FEUP). Prior to this, he was a post-doctoral researcher in Irish Centre for Cloud Computing and Commerce (IC4), and then a post-doc researcher in ANTAREX (AutoTuning and Adaptivity appRoach for Energy efficient eXascale HPC systems) project.

Diana Suleimenova is a Post-doctoral Research Fellow in the Department of Computer Science, working on the VECMA project, which is led by Derek Groen. She investigates irregular migration models and develops simulation techniques that can be used to predict refugee movements. The use of computational skills can contribute to the better understanding, and prediction of migration movements, with the aim to eventually provide support in government and policy decisions.

Imran Mahmood is a Senior Research Fellow in the Department of Computer Science, working on the HiDALGO project, which is led by Derek Groen. His research interests include: Agent-based Modeling, Applied Modeling & Simulation, Operations Research, Multi-agent systems, Distributed Artificial Intelligence and the Analysis & formal verification of complex systems.

Alireza Jahani is a Post-doctoral Research Fellow in the Department of Computer Science, working on the HiDALGO project, which is led by Derek Groen. He specializes in agent-based modelling, multi-agent systems, machine learning, and knowledge management. He obtained his PhD in Computer Science from University Putra Malaysia (UPM) in 2014 and was a Deputy of Technical and Information Services and Assistant Professor in the Faculty of Information Technology at Mehralborz University (MAU), Iran, before joining Brunel University London.

Prospective PhD students

If you're interested in doing a PhD within my research group, you can contact me at Derek "dot" Groen "at"

MSc and BSc students

We currently have four students doing FYP projects within our group.

Current research projects

HiDALGO: HPC and Big Data Technologies for Global Challenges

HiDALGO is a Horizon 2020 Centre of Excellence which is active from December 2018 until December 2021. We will focus on establishing scalable global challenge applications on large supercomputers, and Brunel will in particular focus on creating forced migration models, taking into account weather data from ECMWF as well as telecommunications data. For more information, please see

VECMA: Verified Exascale Computing for Multiscale Applications

VECMA runs from June 2018 until June 2021. We will focus on verification, validation and uncertainty quantification for multiscale computing applications. In particular, we will focus on making this possible using very large supercomputers. We at Brunel manage the technical activities, and we are responsible for the Multiscale Migration Prediction application. For more information, please see As part of this project, we have released the VECMA toolkit as well.

UK Consortium on Mesoscale Engineering Sciences

Many of the blood flow and materials simulations I run these days have been made possible through the UK Consortium on Mesoscale Engineering Sciences (UKCOMES), in which I represent Brunel University London as an Associate Partner.

COST-Action on Open Multiscale Systems Medicine (OpenMultiMed)

OpenMultiMed runs from December 2015 until December 2019. I serve on the Management Committee on this COST-Action, and I am co-leader of the Work Package on Multiscale Computing. This project is a networking effort where we establish collaborative research projects on multiscale modelling, and will record and share the latest advances in the field.

Past Research Projects