Artificial Intelligence to accelerate the energy transition

We combine Artificial Intelligence and Advanced Analytics to deliver much higher confidence in the future performance of energy systems.

Leadership

Dr. Ashkan Rafiee

CEO

Dr. Nitin Repalle

CTO

Contributors

Dr. Asad Abbas

Machine learning and computer vision expert.

Track record in combining deep learning with CFD and FEA simulations for geometry optimisation.

Dr. Natallia Sergiienko

Expert in advanced control and hydrodynamics.

Lecturer at the school of mechanical engineering, Adelaide University.

Key Advisors

Howard Thomas

Business Advisor

Perth-based entrepreneur who has successfully scaled multiple engineering and technology businesses over a 30 year career.

A/ Prof. Denys Dutykh

Chief Scientific Advisor

Associate professor of Mathematics at Khalifa University. His research spans various fields such as hydrodynamics, machine learning, numerical optimisation, optics and number theory.

Ashkan is a mechanical engineer turned data scientist with over a decade of experience across the renewable, shipbuilding and energy industries. He also has strong academic background, having published over 20 papers on machine learning, control systems and hydrodynamics. He has delivered industry-leading data analytics solutions for Inpex, Austal Ships and Carnegie Wave Energy.

Ashkan co-founded Causal Dynamics to bring to life his vision of accelerating the energy transition through the use of Artificial Intelligence and Advanced Analytics.

Nitin is a mechanical engineer with over 15 years experience spanning renewable energy, oil & gas, and mining sectors. With a PhD and EMBA degree, Nitin brings expertise in hydrodynamics, offshore facilities and asset integrity management combined with business analytics and technology commercialisation.

Nitin is passionate about emerging technologies and data science. He has over 20 conference and journal publications in areas such as ocean renewables, energy storage, offshore dynamic systems, and artificial intelligence.

We are a team of scientists, engineers and data analysts headquartered in Perth, Western Australia.

Expert in structural design and response analysis of onshore and offshore systems.

Assistant Professor at the University of Western Australia.

Dr. Mehrdad Kimiaei

Max van Someren

Principal Energy Advisor

Publications

Artificial Intelligence, Machine Learning & Optimisation

Abbass, A., Rafiee, A., and Haase, M., “DeepMorpher: deep learning-based design space dimensionality reduction for shape optimisation”, Journal of Engineering Design, Vol. 43, 2023.

Rafiee, A., Haase, M., and Malcolm, A., “Multi--objective Bayesian Hull Form Optimisation for High--Speed Craft”, Ocean Engineering, Vol. 266, 2022.

Abbass, A., Rafiee, A., Haase, M., and Malcolm, A., “Geometrical Deep Learning for Performance Prediction of High-Speed Craft”, Ocean Engineering, Vol. 258, 2022.

Neshat, M., Nezhad, M.M., Sergiienko, N.Y., Mirjalili, S., Piras, G. and Garcia, D.A., “Wave power forecasting using an effective decomposition-based convolutional Bi-directional model with equilibrium Nelder-Mead optimiser”, Energy, Vol. 256, p.124623, 2022.

Neshat, M., Mirjalili, S., Sergiienko, N.Y., Esmaeilzadeh, S., Amini, E., Heydari, A. and Garcia, D.A., “Layout optimisation of offshore wave energy converters using a novel multi-swarm cooperative algorithm with backtracking strategy: A case study from coasts of Australia”, Energy, Vol. 239, p.122463, 2022.

Colange, B., Vuillon, L., Lespinats, S., & Dutykh, D., "MING: An interpretative support method for visual exploration of multidimensional data. Information Visualization", 21(3), 246–269, 2022.

Lespinats, S., Colange, B., & Dutykh, D., "Nonlinear Dimensionality Reduction Techniques: A Data Structure Preservation Approach", Springer International Publishing, 2022.

Rafiee, A., van-Someren, M., Ellery, D., Pretlove, L., and Malcolm, A., “Predictive Motion Control of High Speed Crafts”, In: 20th Conference on Computer Applications and Information Technology in the Maritime Industries (COMPIT'21), 2021.

Abbass, A., Rafiee, A., Haase, M., and Malcolm, A., “Geometric Convolutional Neural Networks: A journey to surrogate modelling of Maritime CFD”, In: IX International Conference on Computational Methods in Marine Engineering (MARINE 2021), 2021.

Colange, B., Peltonen, J., Aupetit, M., Dutykh, D., & Lespinats, S., "Steering Distortions to Preserve Classes and Neighbors in Supervised Dimensionality Reduction", Thirty-Fourth Conference on Neural Information Processing Systems, 2020.

Repalle N., Viana P., Tellier E., and Thethi R., “Application of Machine Learning for Fatigue Prediction of Flexible Risers – Digital Twin Approach”, SPE-202461-MS, Kuala lumpur, Malaysia, November 2020.

Neshat, M., Sergiienko, N.Y., Mirjalili, S., Majidi Nezhad, M., Piras, G. and Astiaso Garcia, D., “Multi-mode wave energy converter design optimisation using an improved moth flame optimisation algorithm”, Energies, Vol. 14(13), p.3737, 2021.

Rafiee, A., and van-Someren, M.,Improving Efficiency and Comfort of High Speed Crafts using Machine Learning and Big Data”, In: High Speed Marine Vehicles, The Royal Institution of Naval Architects, 2020.

Neshat, M., Alexander, B., Sergiienko, N.Y. and Wagner, M., “New insights into position optimisation of wave energy converters using hybrid local search”, Swarm and Evolutionary Computation, Vol. 59, p.100744, 2020.

Neshat, M., Sergiienko, N.Y., Amini, E., Majidi Nezhad, M., Astiaso Garcia, D., Alexander, B. and Wagner, M., “A new bi-level optimisation framework for optimising a multi-mode wave energy converter design: A case study for the Marettimo Island, Mediterranean Sea”, Energies, Vol. 13(20), p.5498, 2020.

Sergiienko, N.Y., Neshat, M., Da Silva, L.S., Alexander, B. and Wagner, M., “Design optimisation of a multi-mode wave energy converter”, In International Conference on Offshore Mechanics and Arctic Engineering (Vol. 84416, p. V009T09A039). American Society of Mechanical Engineers, 2020.

Neshat, M., Alexander, B., Sergiienko, N.Y. and Wagner, M., “Optimisation of large wave farms using a multi-strategy evolutionary framework”, In Proceedings of the Genetic and Evolutionary Computation Conference 2020 (pp. 1150-1158), 2020.

Neshat, M., Alexander, B., Sergiienko, N.Y. and Wagner, M., “A hybrid evolutionary algorithm framework for optimising power take off and placements of wave energy converters”, In Proceedings of the Genetic and Evolutionary Computation Conference 2019 (pp. 1293-1301), 2019.

Colange, B., Vuillon, L., Lespinats, S., & Dutykh, D., "Interpreting Distortions in Dimensionality Reduction by Superimposing Neighbourhood Graphs", 2019 IEEE Visualization Conference, VIS 2019. Wu, J., Shekh, S., 2019.

Sergiienko, N.Y., Cazzolato, B.S., Ding, B., Neumann, F. and Wagner, M., “Fast and effective optimisation of arrays of submerged wave energy converters”, In Proceedings of the Genetic and Evolutionary Computation Conference 2016 (pp. 1045-1052), 2016.

Sergiienko, N.Y., Cazzolato, B.S., Ding, B. and Arjomandi, M., “An optimal arrangement of mooring lines for the three-tether submerged point-absorbing wave energy converter”, Renewable Energy, Vol. 93, pp.27-37, 2016.

Advanced Analytics & Control

Cugnet, M., Gallois, F., Kirchev, A., & Dutykh, D., "NEOLAB: A Scilab tool to simulate the Negative Electrode of Lead-Acid Batteries", SoftwareX, 22, 101394.Meng, F., 2023.

Sergiienko, N., Ding, B., Zhou, B., Da Silva, L.S.P., Cazzolato, B. and Li, Y., “Co-located offshore wind–wave energy systems: Can motion suppression and reliable power generation be achieved simultaneously?”, Applied Energy, Vol. 331, p.120373, 2023.

Rashidi, A., Dutykh, D., & Beck, C.,"Modeling the potential genesis of tsunamis from below an accretionary prism and their potential impact: a case study along the eastern boundary of the Caribbean Plate", Natural Hazards, 118(1), 307–329. da Silva, L., 2023.

Sergiienko, N., Cazzolato, B. and Ding, B., “Dynamics of hybrid offshore renewable energy platforms: Heaving point absorbers connected to a semi-submersible floating offshore wind turbine”, Renewable Energy, Vol. 199, pp.1424-1439, 2022.

da Silva, L.S., Ding, B., Guo, B. and Sergiienko, N.Y., “Wave energy converter modelling, control, and power take-off design”, In Modelling and Optimisation of Wave Energy Converters (pp. 97-128). CRC Press, 2022.

Sergiienko, N.Y., da Silva, L.S.P., Bachynski-Polić, E.E., Cazzolato, B.S., Arjomandi, M. and Ding, B., “Review of scaling laws applied to floating offshore wind turbines”, Renewable and Sustainable Energy Reviews, Vol. 162, p.112477, 2022.

Da Silva, L.S.P., de Oliveira, M., Cazzolato, B., Sergiienko, N., Amaral, G. and Ding, B., “Statistical linearisation of a nonlinear floating offshore wind turbine under random waves and winds”, Ocean Engineering, Vol. 261, p.112033, 2022.

Schubert, B.W., Robertson, W.S., Cazzolato, B.S., Sergiienko, N.Y. and Ghayesh, M.H., “Nonlinear stiffness enhancement of submerged wave energy device in high fidelity model”, Ocean Engineering, Vol. 254, p.111295, 2022.

Schubert, B.W., Sergiienko, N.Y., Cazzolato, B.S., Robertson, W.S. and Ghayesh, M.H., “The true potential of nonlinear stiffness for point absorbing wave energy converters”, Ocean Engineering, Vol. 245, p.110342, 2022.

Sergiienko, N.Y., Bacelli, G., Coe, R.G. and Cazzolato, B.S., “A comparison of efficiency-aware model-predictive control approaches for wave energy devices”, Journal of Ocean Engineering and Marine Energy, pp.1-13, 2022.

Tran, N., Sergiienko, N.Y., Cazzolato, B.S., Ding, B., Wuillaume, P.Y., Ghayesh, M.H. and Arjomandi, M., “On the importance of nonlinear hydrodynamics and resonance frequencies on power production in multi-mode WECs”, Applied Ocean Research, Vol. 117, p.102924, 2021.

Meng, F., Ding, B., Sergiienko, N.Y., Chen, H., Xu, H. and Li, Y., “Power set-point tracking of a wave energy converter with multiple power take-off units in irregular waves”, IEEE Transactions on Sustainable Energy, Vol. 13(2), pp.767-777, 2021.

Silva, L., Cazzolato, B., Sergiienko, N. and Ding, B., “Nonlinear dynamics of a floating offshore wind turbine platform via statistical quadratization – Mooring, wave and current interaction”, Ocean Engineering, Vol. 236, p.109471, 2021.

Silva, L.S.D., Cazzolato, B.S., Sergiienko, N.Y. and Ding, B., “Efficient estimation of the nonlinear aerodynamic loads of floating offshore wind turbines under random waves and wind in frequency domain”, Journal of Ocean Engineering and Marine Energy, Vol. 7(3), pp.287-303, 2021.

Sergiienko, N.Y., Cocho, M., Cazzolato, B.S. and Pichard, A., “Effect of a model predictive control on the design of a power take-off system for wave energy converters”, Applied Ocean Research, Vol. 115, p.102836, 2021.

Gu, Y., Ding, B., Sergiienko, N.Y. and Cazzolato, B.S., “Power maximising control of a heaving point absorber wave energy converter”, IET Renewable Power Generation, Vol. 15(14), pp.3296-3308, 2021.

Sergiienko, N.Y., da Silva, L.S.P., Ding, B. and Cazzolato, B.S., “Importance of drivetrain optimisation to maximise electrical power from wave energy converters”, IET Renewable Power Generation, Vol. 15(14), pp.3232-3242, 2021.

Repalle N., Ferreira L., Arikan Y., Rimmer A., and Campbell M., “Green hydrogen production from floating wind farms perspective”, MCEDD London, April 2021

Repalle N., Arikan Y., and Campbell M., “Offshore Wind Energy for Australia, A Case Study with a Floating 15MW Turbine”, Australian Oil and Gas Exhibition (AOG), March 2021

Silva, L., Sergiienko, N., Pesce, C., Ding, B., Cazzolato, B. and Morishita, H., “Stochastic analysis of nonlinear wave energy converters via statistical linearization”, Applied Ocean Research, Vol. 95, p.102023, 2020.

Sergiienko, N.Y., Cazzolato, B.S., Arjomandi, M., Ding, B. and da Silva, L.S.P., “Considerations on the control design for a three-tether wave energy converter”, Ocean Engineering, Vol. 183, pp.469-477, 2019.

Meng, F., Rafiee, A., Ding, B., Cazzolato B., and Arjomandi, A., “Nonlinear hydrodynamics analysis of a submerged spherical point absorber with asymmetric mass distribution”, Renewable Energy, vol. 147, pp. 1895--1908, 2019.

Sergiienko, N.Y., Rafiee, A., Cazzolato, B.S., Ding, B., and Arjomandi, M., “Feasibility study of the three-tether axisymmetric wave energy converter”, Ocean Engineering, Vol. 150, pp. 221--233, 2018.

Rafiee, A., and Valizadeh, A., “Non-Linear Hydrodynamics of Bluff Bodies Oscillating Near Free-Surface”, In: Proceedings of the 28th International Offshore and Polar Engineering Conference (ISOPE), Sapporo, Japan, June 2018.

Valizadeh, A., Rafiee, A., Francis, V., and Rudman, M., “An analysis of perforated plate breakwaters”, In: Proceedings of the 28th International Offshore and Polar Engineering Conference (ISOPE), Sapporo, Japan, June 2018.

Rafiee, A., and Valizadeh, A., “Improving the hydrodynamics efficiency of point absorbers through coupling modes of motions”, EWTEC 2017, The 12th European Wave and Tidal Energy Conference.

Sergiienko, N., Cazzolato, B., Hardy, P., Arjomandi, M. and Ding, B., “Internal-model-based velocity tracking control of a submerged three-tether wave energy converter” In Proceedings of the Twelfth European Wave and Tidal Energy Conference, Cork, Ireland, 2017.

Meng, F., Rafiee, A., Cazzolato, B., Ding, B., Arjomandi, M., Piper, J. D., Sergiienko, N., and Hu, Q., “Numerical simulation of a submerged spherical point absorber with asymmetric mass distribution”, EWTEC 2017, The 12th European Wave and Tidal Energy Conference.

Rafiee, A., Wolgamot, H., Draper, S., Orszaghova, J., Fi\'evez, J., and Sawyer, T., “Identifying the design wave group for the extreme response of a point absorber wave energy converter”, In: Proceedings of AWTEC 2016, The 3rd Asian Wave and Tidal Energy Conference, Singapore 2016.

Repalle N., Thiagarajan K.P and Kantharaj M., "Insights into sloshing impact pressures through level set modeling", 34th International Conference on Ocean, Offshore and Arctic Engineering (OMAE), Newfoundland, Canada, June 2015

Wei, Y., Rafiee, A., Henry, A., Dias, F., and Whittaker, T., “ Wave Interaction with an Oscillating Wave Surge Converter. Part I: Viscous Effects”, Ocean Engineering, Vol. 104, pp. 185--203, 2015.

Rafiee, A., and Fievez, J., “Numerical Prediction of Extreme Loads on CETO Wave Energy Converter”, In: Proceedings of EWTEC 2015, The 11th European Wave and Tidal Energy Conference, Nantes, France 2015.

Rafiee, A., Dutykh, D., & Dias, F., "Numerical Simulation of Wave Impact on a Rigid Wall Using a Two–phase Compressible SPH Method", Procedia IUTAM, 18, 123–137, 2015

Repalle N., Fievez J., Mann L., "Hydrodynamic Analysis of CETO array Layout. 10th European Wave and Tidal Energy Conference", Aalborg, Denmark, 2013

Wei, Y. J., Rafiee, A., and Dias, F., “On The viscous effects in the interaction of water waves with an oscillating wave surge converter”, In: Proceedings of EWTEC 2013, The 10th European Wave and Tidal Energy Conference”, Aalborg, Denmark, September 2013.

Rafiee, A., Repalle, N., and Dias, F., “Numerical simulations of 2D liquid impact benchmark problem using two--phase compressible and incompressible methods”, In: “Proceedings of the 23rd International Offshore and Polar Engineering Conference (ISOPE), Alaska, USA, July 2013.

Rafiee, A., Elsaesser, B., and Dias, F., “Numerical simulation of wave interaction with an oscillating wave surge converter”, In: Proceedings of OMAE 2013, ASME 31th International Conference on Ocean, Offshore and Arctic Engineering (OMAE), Nantes, France, June 2013.

Wei, Y. J., Rafiee, A., Elsaesser, B., and Dias, F., “Numerical simulation of an oscillating wave surge converter”, In: Proceedings of OMAE 2013, ASME 31th International Conference on Ocean, Offshore and Arctic Engineering (OMAE), Nantes, France, June 2013.

Rafiee, A., and Dias, F., “Two--dimensional and three--dimensional simulation of wave interaction with an Oscillating Wave Surge Converter”, The 28th International Workshop on Water Waves and Floating Bodies (IWWWFB), L'Isle sur la sorgue, France, April 2013.

Monaghan, J.J., and Rafiee, A., A simple SPH algorithm for multi-fluid flow with high density ratios”, Int. J. Numer. Meth. Fluids, Vol. 71, No. 5, pp. 537--561, 2013.

Thiagarajan K.P, Repalle N., "Wave run-up on columns of deepwater platforms, Journal of Engineering for the Maritime Environment", Volume: 227 issue: 3, p: 256-265, 2012

Thiagarajan K.P., Rakshit D. and Repalle N., "The air-water sloshing problem: fundamental analysis and parametric studies on excitation and fill levels", Journal of Ocean Engineering.38, 498-508. 2011

Repalle N., Rafiee A., Thiagarajan K.P. and Kantharaj M., "Simulation of free surface benchmark problems using level set and SPH Methods", 30th International Conference on Offshore Mechanics and Arctic Engineering (OMAE). Rotterdam, Netherlands. June 2011.

Repalle N., Thiagarajan K.P. and Patterson F., "Wave run-up investigation on a square cylinder", 17th Australasian Fluid Mechanics Conference, Auckland, December 2010.

Truong T., Repalle N., Pistani F. and Thiagarajan K.P., "An experimental study of slamming impact during forced water entry",17th Australasian Fluid Mechanics Conference, Auckland, December 2010.

Repalle N., Truong T., Thiagarajan K.P., Roddier D., Seah R. and Finnigan T., "The Effect of Sampling Rate on the Statistics of Impact Pressure", 29th International Conference on Offshore Mechanics and Arctic Engineering (OMAE). Shanghai, China. June 2010.

Repalle N., Pistani F. and Thiagarajan K.P., "Experimental Study of evolution of impact pressure along the vertical walls of a sloshing tank", The 20th International Offshore and Polar Engineering Conference (ISOPE), Beijing, China. June 2010

Repalle N., Thiagarajan K.P. and Morris-Thomas M., "CFD Simulation of wave run up on Spar Cylinder", 16th Australasian Fluid Mechanics Conference. Gold Coast, Australia. December 2007