Department of Mechanical Engineering, Graduate School of Engineering, Kyushu University
Our research spans detailed chemical kinetics, flame physics, burner combustion, spray processes, and high-fidelity modeling. We connect fundamental science with practical systems to enable ammonia, hydrogen, and other low- and zero-carbon fuels.
We aim to pioneer next-generation combustion technologies for carbon-neutral fuels such as hydrogen and ammonia while improving the efficiency and performance of practical energy systems, including gas turbines, industrial burners, and reciprocating engines. By integrating experiments, diagnostics, and simulation, we seek both fundamental understanding and engineering relevance.
The laboratory’s work is organized around fundamental combustion science and its application to realistic devices. The themes below reflect the scope of the group and align with the current student-group structure.
We develop, optimize, and validate detailed and reduced chemical kinetic models for ammonia and its blends. This supports accurate prediction of ignition, flame propagation, extinction, and emissions formation in carbon-free combustion systems.
We investigate laminar and turbulent flame propagation, burning velocity, flame stretch, and turbulence–chemistry interaction. These studies provide essential physical insight for advanced combustion systems and model development.
Using model burners under elevated pressure and temperature, we study flame stabilization and the formation and control of NO, N2O, NH3, and related emissions in gas turbines and industrial combustion systems.
We study liquid-fuel injection, spray formation, flash boiling, and combustion processes with emphasis on liquid ammonia and engine-oriented applications where fuel delivery, atomization, and emissions are tightly coupled.
We investigate soot and particulate formation in premixed flames to better understand combustion-derived particles in engines and practical systems under increasingly demanding efficiency constraints.
Our research integrates laser diagnostics, high-speed imaging, DNS, reactor-network analysis, CFD, and reduced-order modeling to connect fundamental observations with predictive engineering tools.
Our experimental and numerical tools allow us to examine combustion under controlled conditions and connect observations to predictive models for practical applications.
Across these themes, our goal is consistent: to develop scientifically grounded, practically useful pathways for low-emission and zero-emission combustion systems. This includes ammonia-fueled burners, hydrogen-enabled combustion, liquid-fuel spray systems, and model frameworks that can support next-generation energy and marine applications.