Euler/Lagrange approach

OpenFOAM®

OpenFOAM (Open-source Field Operation And Manipulation) is a C++ open source software for the development of computational fluid dynamics (CFD) and continuum mechanics customized numerical solvers. it can handle several applications in the multiphase flows field.

Particle tracking.
Reacting multiphase models for heat transfer, population balance, breakup, coalescence, etc.
Heat transfer.
Reactions/combustion.
Turbulence.
Mesh interfaces.

In the Multiphase flow working group (MPS – IVT) different codes has been developed for the particle tracking using Euler/Lagrange approach, including:

Stochastic particle-particle collision model.
particle-wall-collisions.
Agglomeration / Deposition.
Mass transfer.
Evaporation.
Different dispersion models (isotropic, anisotropic).
Different injection methods.
Different particle/bubble forces: Drag, Saffman force, Magnus force, virtual mass, Brownian motion, thermophoresis, bubble lift force, wall force, Basset history force.
Adapted Lagrangian time step
Source term distribution.

Fastest3D

The flow solver FASTEST (Flow Analysis Solving Transport Equations with Simulated Turbulence) is an efficient program to calculate flows in complex threedimensional applications.

Further information: Fastest Website

Lag3D

Lag3D (Lagrangian 3D) is a program for simulating disperse phases in a continuous medium, that can be used together with Fastest3D. In doing so the particles trajectories are determined with the flow field via a Lagrange approach.

Features and implemented models

Calculation of volume averaged phase properties
Particle-wall-collissions
Stochastic particle-particle collission model
Agglomeration / coalescense
Vaporization
Laminar / turbulent tracking
Different dispersion models (isotropic, anisotropic)
Quasi-instationary tracking
Particle rotation
Different injection geometries
2/4 Way-coupling with flow solver
Implemented particle forces: drag, Saffman force, magnus force, virtual mass, Brownian motion, thermophoresis
Consideration of Cunningham correcture

The code is available for scientific purposes.

Contact: Prof. Dr.-Ing. Martin Sommerfeld