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LES of longitudinal and transverse self-excited combustion instabilities in a bluff-body stabilized turbulent premixed flame

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Academic year: 2021

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Figure

Fig. 1. Middle cut plane of the mesh in the computational domain.
Fig. 3. Pressure amplitudes of the first five modes obtained by the Helmholtz solver. Top: First three longitudinal modes
Fig. 4. Comparison of Gri-Mech 3.0 and two-step chemistry for laminar flame speed and adiabatic temperature of the burnt gases.
Fig. 10. Vortex shedding structure for the non-reacting case visualized by an iso- iso-contour of Q crit = 2 × 10 8 s −1 colored by transverse velocity w.
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