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Dissipation and dilatation rates in premixed turbulent flames

“…An important role played by the ratio of k d /k s was also revealed in a recent study of compressibility effects in mixing of passive scalars in homogeneous flows. 18 In subsonic reacting flows, non-negligible values of the ratio v were found in non-premixed flames with homogeneous initial conditions at 0 < Ma t < 0.5 [19][20][21][22] and in a spatially developing shear layer at Ma t ( 1. 23 In all these studies, v was significantly less than unity.…”