Professor Xue-Song Bai joined the Department of Energy Sciences at Lund University in April 1995, where he leads a research group in the Division of Fluid Mechanics with a focus on Reactive Fluid Dynamics. He received his PhD in Fluid Mechanics from the Royal Institute of Technology (KTH), Sweden, in 1994 and earned his Docent qualification at Lund University in 1997. He became a senior lecturer in the Department of Energy Sciences in 1999 and has been a professor in the Division of Fluid Mechanics since 2002.

Prof. Xue-Song Bai’s research interests include flame propagation and extinction theory, pollutant-formation mechanisms in chemically reactive flows, turbulence–chemistry interaction modelling, direct numerical simulation and large-eddy simulation of turbulent reactive flows, and modelling of solid/gas and liquid/gas turbulent two-phase reactive flows. His work spans a wide range of energy-conversion processes, including internal combustion engines, gas turbines, and biomass furnaces.

Prof. Bai’s current research focuses on clean combustion technologies for sustainable fuels, including hydrogen, ammonia, methanol, and sustainable aviation fuels. In 2009, he received a prestigious Framework Grant of 14 million SEK from the Swedish Research Council for research on flame–turbulence interaction in lean premixed flames. In 2012, a paper he co-authored and presented at the International Conference on Applied Energy (ICAE 2012) received the Best Paper Award. In 2018, he was elected a Fellow of the Combustion Institute.

To date, Prof. Bai has supervised 30 PhD students to completion. He has published 200+ peer-reviewed journal articles, 100+ conference papers, two book chapters, and co-edited a book published by Cambridge University Press in 2022 titled Advanced Turbulent Combustion Physics and Applications. According to Google Scholar, his citation record includes an h-index of 60.

Prof. Xue-Song Bai teaches Turbulent Combustion, which is a course at Lund University for the 3^rdand 4^thyear undergraduate students, as well as for Ph.D. students. In 2016, as the principal teacher Prof. Bai taught a CeCOST National Graduate School Course “Turbulent Combustion”, which was given to Ph.D. students in Sweden as well as students worldwide. 

Recent research projects of Prof. Bai group:

• 2016-2019, VR project 2015-04076: Effect of intrinsic flame instability on turbulent premixed flames: structures, propagation, and modeling
• 2019-2021, VR project 2018-05999: Fundamental study on combustion of butanol-biodiesel blend fuels advanced combustion strategies towards high efficiency and low emissions
• 2021-2023, Nordic Energy Research project “CAHEMA – concepts of ammonia/hydrogen engines for marine application”, https://www.nordicenergy.org/project/cahema/ 
• 2021-2025, EU project “Sustainable technologies for future long distance shipping towards complete decarbonization – ENGIMMONIA”, https://www.engimmonia.eu/ 
• 2020-2026: Knut-Alice Wallenbergs Stiftelse grant on CO2 neutral energy conversion (COCALD), https://kaw.wallenberg.org/en/research/replacing-fossil-fuels-metals 
• 2023-2026: VR project 2022-05060: Turbulent Hydrogen/Ammonia Premixed Flames under Highly Intensive Turbulence Conditions: Fundamental Physics and Modeling
• 2023-2026: EU project “MYTHOS - Medium-range hybrid low-pollution flexi-fuel/hydrogen sustainable engine”, https://mythos.ruhr-uni-bochum.de/ 
• 2024-2027, Nordic Energy Research project “Hi-EFECTS – High-Efficiency Flexible Electrofuel Conversion for Transportation at Sea”, https://www.nordicenergy.org/project/hi-efects/
• 2024-2027, Nordic Energy Research project “Green Sea Faroe – Toward net-zero emission short sea green transportation in the Faroe Islands”, https://www.nordicenergy.org/project/green-sea-faroe/