https://tube.forge.unibw.de/videos/watch/d263c2ad-8d46-4915-ae58-1c773d42f199 The flow over periodic hills is a classic test case for turbulence models. The flow is cycling in a periodic domain, thereby no turbulent inlet condition need to be built. After the separation on the leeward side of the hill, a shear layer is formed which reattaches to the floor. This behavior is strongly affected by the turbulence model. The video covers two throughflow-times at bulk velocity. Simulation details: OpenFOAM v1812, 2nd order central in space, 2nd order backward in time, WALE turbulence model, 11.7M cells structured mesh (396x148x200) Fri, 23 Oct 2026 12:59:48 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.forge.unibw.de https://tube.forge.unibw.de/client/assets/images/icons/icon-1500x1500.png https://tube.forge.unibw.de/videos/watch/d263c2ad-8d46-4915-ae58-1c773d42f199 All rights reserved, unless otherwise specified in the terms specified at https://tube.forge.unibw.de/about and potential licenses granted by each content's rightholder.