4C-Flow

Oldrich  Svec

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Picture of steel fiber reinforced self-compacting plate casting. The numerical simulation was performed by 4C-Flow.

4C-Flow

4C-Flow is a computational tool capable of simulating free surface flow of non-Newtonian fluid with immersed solid particles.

4C-Flow was developed with a primary focus on simulating flow of steel fiber reinforced self-compacting concrete. The computational tool is however general enough to allow for simulations of other fluids such as water, blood and others.

Currently, 4C-Flow has a form of a computational library. We therefore offer to setup and run requested numerical simulations of flow for you. Take a look at examples to get a feeling of what we can do for you.

Do not hesitate to contact us to get more information about the computational tool and about what we can offer you.

Features of the 4C-Flow:

  • Model
    • Composed of fluid solver, solid particle solver and connection link between the two solvers
    • Completely parallelized allowing to run on tens up to hundreds of computational cores
    • Currently in form of computational library - no graphic user interface

  • Homogeneous fluid
    • Both Newtonian and non-Newtonian rheology
    • Free surface to represent the surrounding air
    • Incompressible and compressible flows
    • Primarily used and tested for laminar flows of low Reynold's number
    • Arbitrary shape of boundaries such as walls, shells etc.
    • Inflow and outflow boundary conditions
    • Prescribed fluid velocity or fluid pressure boundary conditions
    • External forces such as gravity

  • Immersed solid particles
    • Rigid non-deformable particles
    • Ability to simulate large number of immersed particles
    • Particles of arbitrary shape - capable of mimicking e.g. steel reinforcement bars, fibers, aggregates and others.
    • Two-way coupled interactions between particles and the surrounding fluid
    • Plastic / elastic collisions among particles and with boundaries
    • Static and dynamic friction coefficient for collisions