Lattice Boltzmann approach

The program LBsim3D (Lattice-Boltzmann simulation 3D) is based on the Lattice-Boltzmann method and is used for direct numerical simulation of disperse fluid-solid flows in electric and thermic fields.

Features and implemented models:

1. flow solver:

  • Structured equidistant and non-equidistant 3D grids
  • Discretisation with the D3Q19 model
  • Single-Relaxation-Time collision operator based on BGK approach
  • Laminar and turbulent flows (spectral stimulation of isotropic homogenous turbulence)

2. Handling of numerically highly resolved particle surfaces:

  • Curved Boundaries for complex morphologies
  • Generation and characterization of agglomerates
  • Determination of forces and flow coefficients of arbitrary particles
  • Lagrangian particle tracking (translation and rotation)

3. Lagrangian tracking of point particles:

  • Stationary and instationary particle tracking
  • Considered Forces acting on particle: drag, gravitation, lift, pressure gradient, virtual mass, Basset, Saffman, Magnus, Brownian motion Bewegung, electric field
  • Particle rotation
  • Different injection methods
  • Deterministic particle-particle collision model
  • Deterministic particle-wall deposition model

4. Solver for the temperature field:

  • Hybrid Temperature-Lattice-Boltzmann method
  • Stationary and instationary coupling

5. Solver for electric fields:

  • Solution oft he Laplace equation


Last Modification: 26.09.2017 - Contact Person: Webmaster