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Issue ESAIM: Proc.
Volume 7, 1999
Third International Workshop on Vortex Flows and Related Numerical Methods
Page(s) 429 - 439
DOI http://dx.doi.org/10.1051/proc:1999040

ESAIM: Proc., 1999, Vol. 7, pp. 429-439
DOI: 10.1051/proc:1999040

Numerical simulations of two-way coupled particle laden mixing layers

E. Wallner1 and E. Meiburg2

1  Institute of Flight Mechanics and Flight Control University of Stuttgart Pfaffenwaldring 7a, 70550 Stuttgart, Germany
2  Department of Aerospace and Mechanical Engineering University of Southern California Los Angeles, CA 90089-1191, USA


Abstract
Navier-Stokes simulations are presented for two-way coupled, particle laden, two-dimensional mixing layers in the dilute regime. In contrast to previous numerical approaches for two-way coupled two-phase flows, the simulations are based on the vorticity, streamfunction formulation of the governing equations. While the fluid phase is treated in an Eulerian way, the particles are tracked in a Lagrangian fashion. The numerical approach is validated against simple test problems. Furthermore, the production/destruction of vorticity is shown to be related to the misalignment of the concentration gradient and the slip velocity, as well as to the difference in fluid and particle vorticities.



© EDP Sciences, ESAIM 1999

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