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Simulation of incompressible two-phase flows with large density differences employing lattice Boltzmann and level set methods

Mehravaran, M ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1016/j.cma.2008.07.015
  3. Publisher: 2008
  4. Abstract:
  5. A hybrid lattice Boltzmann and level set method (LBLSM) for two-phase immiscible fluids with large density differences is proposed. The lattice Boltzmann method is used for calculating the velocities, the interface is captured by the level set function and the surface tension force is replaced by an equivalent force field. The method can be applied to simulate two-phase fluid flows with the density ratio up to 1000. In case of zero or known pressure gradient the method is completely explicit. In order to validate the method, several examples are solved and the results are in agreement with analytical or experimental results. © 2008 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Drop breakup ; Drop formation ; Evolutionary algorithms ; Flow of fluids ; Fluid dynamics ; Level measurement ; Multiphase flow ; Phase interfaces ; Pressure gradient ; Set theory ; Surface chemistry ; Surface tension ; Density differences ; Density ratios ; Force fields ; Hybrid lattices ; Immiscible fluids ; Lattice boltzmann ; Lattice Boltzmann method ; Lattice Boltzmann methods ; Level Set functions ; Level set method ; Level set methods ; Phase fluids ; Surface tension forces ; Two-phase flows ; Two phase flow
  8. Source: Computer Methods in Applied Mechanics and Engineering ; Volume 198, Issue 2 , December , 2008 , Pages 223-233 ; 00457825 (ISSN)
  9. URL: https://www.sciencedirect.com/journal/computer-methods-in-applied-mechanics-and-engineering/vol/198/issue/2