The analysis of turbulent mixing in complex turbulent flows is a challenging task. The
effective mixing of entrained fluids to a molecular level is a vital part of the dynamics of
turbulent flows especially when combustion is involved. The work has shown the limitations of
the steady-state simulations and acknowledged the need of applying high-fidelity unsteady
methods for the calculation of flows with pronounced unsteadiness promoted by large-scale
coherent structures or other sources.
