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Relative velocities in bi-disperse turbulent aerosols: simulations and theory
- Source :
- Phys. Rev. E 98, 063107 (2018)
- Publication Year :
- 2018
-
Abstract
- We perform direct numerical simulations of a bi-disperse suspension of heavy spherical particles in forced, homogeneous, and isotropic three-dimensional turbulence. We compute the joint distribution of relative particle distances and longitudinal relative velocities between particles of different sizes, and compare the results with recent theoretical predictions [Meibohm et al. Phys. Rev. E 96 (2017) 061102] for the shape of this distribution. We also compute the moments of relative velocities as a function of particle separation, and compare with the theoretical predictions. We observe good agreement.<br />Comment: 12 pages, 3 figures
- Subjects :
- Physics - Fluid Dynamics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. E 98, 063107 (2018)
- Publication Type :
- Report
- Accession number :
- edsarx.1809.10440
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevE.98.063107