Application of coupled lattice boltzmann and Phase-field methods for multiphase flow simulations

Premnath, K. N ; Sharif University Of Technology

394 Viewed
  1. Type of Document: Article
  2. DOI: 10.1115/HT2013-17696
  3. Abstract:
  4. Coupling of lattice Boltzmann (LB) and phase-field (PF) methods is discussed for simulation of a range of multiphase flow problems. The local relaxation and shifting operators make the LB method an attractive candidate for the simulation of the single-phase as well as multiphase flows. For simulating interface dynamics, LB methods require to be coupled with an appropriate scheme representing interfacial dynamics. To this end, we have used a model based on the order parameter, which could be either an index function or a phase-field variable, and coupled it with a LB solver for the simulation of various classes of complex multi-physics and multiphase flows. The LB method is used to compute the flow-field, and, in the case of electrodeposition process modeling, the electro-static potential-field. The application of such a coupled LB-PF is illustrated by the solution of a variety of examples. Finally, fast simulation of such a coupled algorithm is achieved using the state-of-art numerical solution acceleration techniques involving preconditioning and multigrid approaches
  5. Keywords:
  6. Fuel cells ; Sustainable development ; Multiphase flow
  7. Source: ASME 2013 Heat Transfer Summer Conf. Collocated with the ASME 2013 7th Int. Conf. on Energy Sustainability and the ASME 2013 11th Int. Conf. on Fuel Cell Science, Engineering and Technology, HT 2013 ; 2013 ; ISBN: 9780791855492
  8. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1795526