New technological challenges in combustion science require reliable ignition and flame stabilization in demanding conditions. Some examples are ultra-lean combustion, fuel flexibility (using alternative, low-carbon fuels), supersonic combustion (scramjets), and the active control of thermo-acoustic instabilities. Non-thermal plasma discharges have been proposed as an innovative solution to ensure efficient and stable operation in these particular regimes. Nanosecond discharges are introduced to obtain a more favourable ignition of reactive mixtures, where conventional methods fail. At BRITE our research proposes to fill the existing gaps in the numerical modelling of PAC by proposing a comprehensive numerical study on the plasma-assisted ignition and combustion of fuel-air mixtures by nanosecond pulse discharges using reliable surrogates.