PitzDaily is a backward facing step: the channel widens abruptly, the flow separates at the corner and reattaches downstream, forming a recirculation zone whose length is the quantity everyone compares.
That length is why the case survives as a benchmark. It is sensitive to the turbulence model, to the mesh near the step and to the numerical schemes, so it exposes the effect of choices that a simpler case would hide.
It also teaches the mechanics of running OpenFOAM: generate the mesh with blockMesh, check it with checkMesh, run the solver, and view the result in ParaView. Those four steps repeat in every case you run afterwards.
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In this tutorial, you will learn to simulate a simple case (pitzDaily tutorial) using OpenFOAM.
Convert Photography to Mesh using Gmsh
Learn how to generate a CFD mesh from any photograph using the Gmsh mesher.
OpenFOAM Tutorial | Multiphase Simulation
In this tutorial you will learn how to simulate a multiphase simulation through lockExchange tutorial that comes by default with OpenFOAM.
Tutorial: Centrifugal Pump using ANSYS Fluent.
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