Mathematical and numerical modelling of gas-solid turbulent flows in complex geometries

• DOI: 10.22533/at.ed.4701905046

• Palavras-chave: Atena

• Keywords: CFD, Complex geometries, Immersed Boundary Method, solid particles

• Abstract:

  The presence of solid particles in

  industrial turbulent flows in complex geometries

  is widely evidenced in engineering. However

  the correct prediction of flow patterns, particles

  trajectories and distributions is a highly complex

  task. The analysis of the particle velocity as

  well as their trajectories in the gas-solid flow is

  of fundamental importance. We used an Euler-

  Lagrangean approach where the dispersed

  phase is treated in the Lagrangean referential

  and the governing equations for the continuous

  phase are solved in the Eulerian referential. An

  advantage of the application of the Immersed

  Boundary Method is that the immersed geometry

  is also represented in the Lagrangean referential.

  It is worthy to recall that one of the advantages

  of the Immersed boundary methodology is the

  capability of solving flows in the presence of

  complexes geometries in Cartesian grids, which

  facilitates the particle tracking of solid particles

  in LES. By performing Large Eddy Simulations

  we demonstrate, in the present work, that it is

  possible to predict complex multiphase flows by

  combining promising methodologies like LES

  and Immersed Boundary Methodology. The fully

  parallel in-house code developed was validated

  face to experimental results of Sommerfeld and

  S.Lain (2001) with very good accuracy.

• Número de páginas: 15