We are faced with the urgent need to reduce CO2 emissions, an issue that affects a wide range of technologies with economic and social significance. One of the major contributors to CO2 emissions over the next decades are internal combustion engines, so reducing their emissions is imperative. Furthermore it is mandatory to improve internal combustion engines with respect to fuel efficiency and low local emissions like NOX and hydrocarbons.
To address these issues, a comprehensive understanding of the underlying physical and chemical processes is necessary. Recent advances in the automotive industry have led to the downsizing of the internal combustion engine geometry, which increases the surface-to-volume ratio of the engine. To this regard, near-wall reactions become increasingly important for flame quenching and unburned hydrocarbon emissions. In combination with numerical simulation research in this field leads to improved combustion efficiency and engine development.