I'm trying to run a model of a thrust plain bearing with a simple groove. The model is just a simple slice in 2D, cyclic, laminar. The sketch is exaggerated in height, the real domain is something like 12mm long and 0.01mm high. I'm having terrible difficulties with it. If I change the mesh cell count even slightly the results (forces on the walls) vary wildly and not in a trend of any kind... Is there something special about thin features that simpleFoam can't do or am I doing something wrong? https://cdn.discordapp.com/attachments/598785402391887872/1494568911901954168/image.png?ex=69e31544&is=69e1c3c4&hm=2ee8cba2c01298fb7c8ac0f4c0991d2664ad6bb9a4568dabf2b2e163ec7f73a7& https://cdn.discordapp.com/attachments/598785402391887872/1494568912333832304/image.png?ex=69e31544&is=69e1c3c4&hm=411eced6a4add7f5687b333030b8d4a128085b6141f3e0def9094a2ba7557346&