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