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for CFD and FEA

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Multiphase flow based on OpenFOAM®’s volume of fluid method

Turbulent transient vortex shedding behind a plate with holes in a chemical plant. Eddy transport simulation using LES (Large-Eddy-Simulation) in OpenFOAM

Water droplets are evaporating in a quenching device. Strong coupled interaction with heat transfer, multiple species transport, species mass transfer and parcel based particle modelling.

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Moving mesh applications with free surfaces are very computational intensive.

Valve with a sliding mesh approach

Two phase Euler-Euler simulation

Virtual sudden color change in an optimized PVC extrusion die showing a very uniform residence time of the non-Newtonian melt within the die

Bag filters are loaded with dust particles, hereby changing the outflow velocity depending on the current load.

Water-Air simulation with VOF on a blockMesh grid

The complex flow behavior of a two phase Euler-Euler simulation is visualized with passive particles.

Streamlines are changing when the bag filters are clogged more and more.

Clogging water filter animation, showing particle transport and a baffle based filter boundary condition with a Darcy resistance model and with specific handling of turbulence damping

DHCAE Tools’ expertise

We have a vast experience and expertise in solving complex CFD tasks from various sectors for a targeted design or optimisation of products and processes.

Valve example: Solved with DHCAE’s OpenFOAM -CalculiX coupling

The animation shows an example of the ACMI functionality in OpenFOAM which allows sliding meshes and partial overflow in the resulting transition zones. Here the motion is combinded with piston movement.

Filter application: Transfer of the microscale approach (calculated with DNSLab above) to a mesoscale model with porous structures in OpenFOAM (below)

Meso-Scale filter modelling: Considers the cake generation by a porous zone. The resistance is estimated by the Ergun-equation depending on the local particle size resulting from the individual settling in the cells.