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ESAIM: Proceedings, Vol. 7, 1999, 429-439
Third International Workshop on Vortex Flows
and Related Numerical Methods
http://www.emath.fr/proc/Vol.7/

Numerical simulations of two-way coupled particle laden mixing layers

E. WALLNER^*AND E. MEIBURG

Department of Aerospace and Mechanical Engineering
University of Southern California
Los Angeles, CA 90089-1191, USA
e-mail: eckart@spock.usc.edu
 

^*Present address:
Institute of Flight Mechanics and Flight Control
University of Stuttgart
Pfaffenwaldring 7a, 70550 Stuttgart, Germany
e-mail: ewallner@ifr.luftfahrt.uni-stuttgart.de

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.
  Contents | PDF file (456 KB)