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Model ID: 94

Stationary Incompressible Flow over a Backstep

This model examines the physics of plane, incompressible and steady flow: flow over a backward step in the absence of external forces. It addresses a common benchmark problem in the field of computational fluid dynamics. There is no known exact solution, but experimental data have been published, making it possible to check the accuracy of the FEM solution.

The model includes analyses using both regular triangular meshes and mapped meshes, comparing the solutions for various mesh densities.

The figure shows the velocity fields in a streamline plot. Behind the step you can identify a recirculation region that expands with increasing Reynolds number.

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