Direct numerical simulations, (DNS), are used to simulate the decay of an isotopic, turbulent, chemically-reacting flow at high temperatures. The independent parameters that govern the physical process are introduced. The different effects from each of the parameters in the flow are explained by using the results from the DNS. It is found that there is a feedback mechanism between the chemical ...

An exact analytic solution is derived for the 2D acoustic pressure field generated by a time-harmonic line mass source located above an impedance surface with uniform grazing flow. Closed-form asymptotic solutions in the far-field are also provided. The analysis is valid for both locally-reacting and nonlocally-reacting impedances, as is demonstrated by analysing a nonlocally reacting effective...

Abstract The evaporation and combustion characteristics of a kerosene spray injected perpendicularly into cross-flow high-temperature vitiated air is investigated. This fundamental flow configuration has wider implications for the future development ultra-low emission aeronautical combustors, particularly with respect to technologies involving MILD combustion. Large eddy simulations Eulerian–La...

Abstract We perform Large-eddy simulations of a non-premixed swirling flame in model combustion chamber with air bulk flow at Re = 15000 and central pilot low-velocity jet methane using the Flamelet-generated manifold model. The unsteady behaviour this regime is well reproduced based on dynamics. distribution turbulent kinetic energy suggests presence intensive vortical structures typical high-...