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Particle transport in turbulent flow using both Lagrangian and Eulerian formulations

✍ Scribed by D. Hryb; M. Cardozo; S. Ferro; M. Goldschmit

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
802 KB
Volume
36
Category
Article
ISSN
0735-1933

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✦ Synopsis

Lagrangian and Eulerian models for particle transport by a turbulent fluid phase are presented. In both methods, particle distribution results from the action of applied forces (buoyancy, inertial, added mass and drag forces) and turbulent effects are shown. The carrier phase flowwhich is solved by finite element method using a k-ε turbulence modelis assumed not to depend on the particles' motion. In the Lagrangian formulation the dynamic equation for the particles is solved. A discrete random walk model is used to account for the turbulent effects. In the Eulerian formulation, the particle concentration is calculated from a convection-diffusion equation using the terminal particles' velocity and turbulent diffusivity. Both models are compared to experimental measurements and analytical results; a good agreement is observed.

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