3D spinodal decomposition in the inertial regime

Kendon, V. M. and Desplat, J-C. and Bladon, P. and Cates, M. E. (1999) 3D spinodal decomposition in the inertial regime. Physical Review Letters, 83 (3). pp. 576-579. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.83.576)

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We simulate late-stage coarsening of a 3D symmetric binary fluid using a lattice Boltzmann method. With reduced lengths and times, l and t, respectively (with scales set by viscosity, density, and surface tension), our data sets cover 1 ≲ l ≲ 105 and 10 ≲ t ≲ 108. We achieve Reynolds numbers approaching 350. At Re ≳ 100 we find clear evidence of Furukawa’s inertial scaling (l ˜ t2/3), although the crossover from the viscous regime (l ˜ t) is very broad. Though it cannot be ruled out, we find no indication that Re is self-limiting (l ˜ t1/2) as proposed by M. Grant and K. R. Elder [Phys. Rev. Lett. 82, 14 (1999)].


Kendon, V. M. ORCID logoORCID: https://orcid.org/0000-0002-6551-3056, Desplat, J-C., Bladon, P. and Cates, M. E.;