Michael Groom

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My research has been primarily in the field of computational fluid dynamics; both fundamental studies of turbulence and turbulent mixing as well as various applied problems in external aerodynamics. Recently I have begun to focus on novel combinations of data-driven methods and numerical simulation for the purpose of surrogate modelling and prediction of physical systems.

Below is a summary of my research output to date. Most of this information can also be found on my various online profiles:

Google Scholar | Scopus | Web of Science | ORCID | ResearchGate

Grants:

• Thornber, B., Kirkpatrick, M., Williamson, N., Armfield, S., Manchester, I., Groom, M., Chauhan, K. Zecevic, V., Cleary, M., Dunn, M., Hill, A. and Ilaya, O., Guwara: a suite of faster-than-realtime urban wind and plume transport models, 2022-2025.
• Funding organisation: Defence Materials Technology Centre.
• Amount: $833k AUD.

• Wang, Z., Groom, M., Lawson, N. and Wong, K., Accelerating academic discovery and education outcomes, 2022.
• Funding organisation: James N Kirby Foundation.
• Amount: $47k AUD.

• Manchester, I., Thornber, B. and Groom, M., A subjectively tuned KC-30 wake field model, 2021-2022.
• Funding organisation: Thales Australia.
• Amount: $44k AUD.

• Groom, M., Early-career funding for individuals interested in improving the long-term future, 2021.
• Funding organisation: Open Philanthropy.
• Amount: $30k AUD.

• Thornber, B., Vio, G. and Groom, M., CH-47F Phase 2 Transient Blade Sail Analysis, 2017-2018.
• Funding organisation: Defence Science and Technology Group.
• Amount: $60k AUD.

Invited Talks:

• ANZIAM seminar series, The University of Tasmania, 14th March 2025.
• ACCESS-NRI Machine Learning for Climate and Weather working group, 7th February 2025.
• ANZIAM seminar series, The University of Tasmania, 15th September 2023.

Publications:

• Groom, M., Bassetti, D., Horenko, I. and O'Kane, T.J. (2025). Entropic learning enables skilful forecasts of ENSO phase at up to two years lead time. Submitted, doi:10.48550/arXiv.2503.01412
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• Pascoe, B., Groom, M. and Thornber, B. (2025). Turbulence Modelling of Mixing Layers under Anisotropic Strain. Submitted, doi:10.48550/arXiv.2502.13563
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• Pascoe, B., Groom, M., Youngs, D.L. and Thornber, B. (2025). Impact of transverse strain on linear, transitional and self-similar turbulent mixing layers. Submitted, doi:10.48550/arXiv.2502.13444
• Preprint

• Groom, M., Bassetti, D., Horenko, I. and O'Kane, T.J. (2024). On the Comparative Utility of Entropic Learning versus Deep Learning for Long-Range ENSO Prediction. Artificial Intelligence for the Earth Systems, 3, 240009.
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• Pascoe, B., Groom, M., Youngs, D.L. and Thornber, B. (2024). Impact of axial strain on linear, transitional and self-similar turbulent mixing layers. Journal of Fluid Mechanics, 999, A24.
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• Groom, M., and Thornber, B. (2023). Numerical simulation of an idealised Richtmyer–Meshkov instability shock tube experiment. Journal of Fluid Mechanics, 964, A21.
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• Zhou, Y., Williams, R.J.R., Ramaprabhu, P., Groom, M., Thornber, B., Hillier, A., Mostert, W., Rollin, B., Balachandar, S., Powell, P.D., Mahalov, A. and Attal, N. (2021). Rayleigh–Taylor and Richtmyer–Meshkov instabilities: A journey through scales. Physica D: Nonlinear Phenomena, 423, 132838.
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• Groom, M. and Thornber, B. (2021). Reynolds number dependence of turbulence induced by the Richtmyer–Meshkov instability using direct numerical simulations. Journal of Fluid Mechanics, 908, A31.
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• Groom, M. and Thornber, B. (2020). The influence of initial perturbation power spectra on the growth of a turbulent mixing layer induced by Richtmyer–Meshkov instability. Physica D: Nonlinear Phenomena, 407, 132463.
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• Zhou, Y., Groom, M., and Thornber, B. (2020). Dependence of Enstrophy Transport and Mixed Mass on Dimensionality and Initial Conditions in the Richtmyer–Meshkov Instability Induced Flows. Journal of Fluids Engineering, 142(12), 121104.
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• Groom, M. and Thornber, B. (2019). Direct numerical simulation of the multimode narrowband Richtmyer–Meshkov instability. Computers & Fluids, 194, 104309.
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• Thornber, B., Groom, M. and Youngs, D. (2018). A five-equation model for the simulation of miscible and viscous compressible fluids. Journal of Computational Physics, 372, 256-280.
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Conferences:

• Groom, M., Bassetti, D., Horenko, I. and O'Kane, T.J. Entropic learning enables skilful forecasts of ENSO phase at up to two years lead time. 61st Conference of the Australian and New Zealand Industrial and Applied Mathematics Society, Coffs Harbour, Australia, 2025.
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• Foster, N., Manchester, I. and Groom, M. An Evaluation of Physics-Informed Learning With General Neural Operator Transformers. AIAA SciTech 2025 Forum, Orlando, Florida, 2025.
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• Pascoe, B., Groom, M. and Thornber, B., Turbulence modelling of the Richtmyer-Meshkov instability under anisotropic strain, 24th Australasian Fluid Mechanics Conference, Canberra, Australia, 2024.
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Abstract

• Groom, M., Bassetti, D., Horenko, I. and O'Kane, T.J. On the comparative utility of entropic learning versus deep learning for long-range ENSO prediction. Mathematisches Forschungsinstitut Oberwolfach Mini-Workshop: Mathematics of Entropic AI in the Natural Sciences, Oberwolfach, Germany, 2024.
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• Groom, M., Bassetti, D., Horenko, I. and O'Kane, T.J. On the comparative utility of entropic learning versus deep learning for long-range ENSO prediction. 60th Conference of the Australian and New Zealand Industrial and Applied Mathematics Society, Hahndorf, Australia, 2024.
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• Groom, M., Bassetti, D., Horenko, I. and O'Kane, T.J. On the comparative utility of entropic learning versus deep learning for long-range ENSO prediction. 30th Conference of the Australian Meteorological and Oceanographic Society, Canberra, Australia, 2024.
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• Pascoe, B., Groom, M. and Thornber, B., Modelling the effects of convergence on the Richtmyer-Meshkov instability in planar geometry, 76th Annual Meeting of the Division of Fluid Dynamics, Washington, DC, 2023.
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• Groom, M. and Thornber, B., Numerical Simulation of an Idealised Richtmyer–Meshkov Instability Shock Tube Experiment, 23rd Australasian Fluid Mechanics Conference, Sydney, Australia, 2022.
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• Pascoe, B., Groom, M. and Thornber, B., Richtmyer-Meshkov Instability under Axial Strain, 23rd Australasian Fluid Mechanics Conference, Sydney, Australia, 2022.
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• Groom, M. and Thornber, B., Numerical Simulation of the Broadband RMI and Comparison with Shocktube Experiments, 17th International Workshop on the Physics of Compressible Turbulent Mixing, Atlanta, Georgia, 2022.
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• Groom, M. and Thornber, B., Numerical simulation of the Richtmyer-Meshkov instability evolving from broadband initial perturbations, APS March Meeting 2022, Chicago, Illinois, 2022.
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• Groom, M. and Thornber, B., Comparison of High-Resolution Reconstruction Schemes in Unsteady Low Mach Number Flows, 7th International Conference on Numerical Methods for Hyperbolic Problems, Trento, Italy, 2021.
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• Groom, M. and Thornber, B., A Comparative Study of High-Resolution Upwind Methods in Unsteady Low Mach Number Flows, 22nd Australasian Fluid Mechanics Conference, Brisbane, Australia, 2020.
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• Groom, M. and Thornber, B., Direct numerical simulation of Richtmyer-Meshkov instability with broadband initial perturbations, 72nd Annual Meeting of the APS Division of Fluid Dynamics, Seattle, Washington, 2019.
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• Groom, M., Widjaja, R., Ain, H., Thornber, B. and Vio, G., Aero-elastic analysis of shipboard helicopter engagement and disengagement operations, 10th Australian Pacific Vertiflite Conference on VTOL Technology, Melbourne, Australia, 2019.
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• Groom, M. and Thornber, B., Anisotropy in the 3D multimode Richtmyer-Meshkov instability, 21st Australasian Fluid Mechanics Conference, Adelaide, Australia, 2018.
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• Groom, M. and Thornber, B., Direct Numerical Simulation of Multimode Narrowband Richtmyer-Meshkov Instability, 16th International Workshop on the Physics of Compressible Turbulent Mixing, Marseille, France, 2018.
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• Groom, M., Thornber, B. and Romenski, E., Hyperbolic governing equations for miscible and viscous compressible fluids, 10th International Conference on Computational Fluid Dynamics, Barcelona, Spain, 2018.
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• Groom, M., Youngs, D. and Thornber, B., Development and validation of a five-equation multicomponent model with viscous, thermal and species diffusion, 6th International Conference on Turbulent Mixing and Beyond, Trieste, Italy, 2017.
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• Groom, M., Thornber, B. and Youngs, D., A five-equation model for the simulation of miscible, compressible fluids including molecular species transport, 11th Asia-Pacific Conference on Combustion, Sydney, Australia, 2017.
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• Groom, M., Thornber, B., Vio, G.A. and Widjaja, R., Isolated rotor engagement and disengagement simulations in ship airwake, 20th Australasian Fluid Mechanics Conference, Perth, Australia, 2016.
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