In this study, we show numerical predictions of the Zimont and Peter's turbulent flame speed models for low-swirl Methane/Air/Hydrogen flames [1]. These are contained as default options within ANSYS Fluent Premixed reaction model. Two distinct simulation tasks part present study – non-reacting reacting flows, with three different methane mixtures in compositions added 0, 40 60% hydrogen. The re...

Velocity dilatation and total, solenoidal, dilatational dissipation rates of the total flow kinetic energy are extracted from three different direct numerical simulation databases obtained by independent research groups using codes methods (e.g., single-step chemistry complex flames) six premixed turbulent flames associated with flamelet, thin reaction zone, broken zone regimes burning. The res...

In turbulent premixed flames, not only the isotropy of velocity fluctuations is altered by thermal expansion effect but also dissipative structure flow field and topology are deeply influenced flame. Considering joint probability density function second third invariants gradient tensor (VGT)—or its traceless counterpart—is a classical way to deduce flows at these smallest scales. These quantiti...