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Modeling turbulence in CFD analyses

Turbulent flows are omnipresent in nature and technology. Pipe flows, flows around buildings, around aircraft, marine vessels and other vehicles are virtually always turbulent. A flow is only laminar in  more specific cases, when a flow is (1)  very viscous,…

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Modeling wall roughness in fluid flows with CFD

In some industrial applications, wall roughness can easily be avoided. Situations exist in which roughness gradually evolves, for instance bio-fouling in marine vessels or corrosion. Sometimes the manufacturing process is limiting in avoiding wall roughness, think of welding seams. To…

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