Showcase – Validation

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Benchmark Simulation Water Management

Our customer IAV GmbH designed and built a test bench to investigate various simulation tools, including PreonLab, to illustrate exemplary load cases from the field of water management.

PreonLab showed that the discharge behaviour of the water on an inclined plane is very similar to the real test bench. The constriction of the water with decreasing water pressure was also shown to be exactly symmetrical in the simulation.

The quantiative predictions made by PreonLab for this example and other variants were not only very well matching with the experiment but also computed in the shortest time.

Also the test bench with holes and obstacles shows great results:

 


 

Poiseuille Flow

Poiseuille Flow is a famous benchmark for CFD codes.
You will see how well PreonLab captures the flow across Reynolds numbers ranging from 10 to 1,000 for different combinations of inlet velocity, viscosity and density in this article:

Poiseuille Flow


 

Lid-Driven Cavity

The computation of a lid-driven cavity flow is a famous test bed for #CFD codes.
You will learn how well PreonLab captures the flow across Reynolds numbers ranging from 100 to 10,000 for different combinations of viscosity, density and lid velocity in this article:

Lid-Driven Cavity at PreonLab


 

MARIN Dam Break Simulation

Comparison of the rendered result simulated with PreonLab with real world video footage and experiment data. The validation scenario is specified in Kleefsman et al. “A volume-of-fluid based simulation method for wave impact problems“ published in the Journal of Computational Physics 206, 1 (2005). The real world pressure values described in the paper have been compared to the results computed in PreonLab.

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Drag Force Model

Being able to efficiently simulate free-surface flow without necessarily simulating the air phase of the simulation domain is a powerful method for rapid-prototyping. Within only a couple of hours the engineer gets the results of the PreonLab simulation and can react on the simulation analysis by performing another simulation with an evolved CAD model. Using the Liu drag force model, the air phase can nevertheless be taken into account without reducing the performance of the simulation.

In the showcased video you can see the validation results that have been compared to real world data in a tire development test environment.

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