[michel89]

Hi everybody! Actually i'm using Numeca solver for my thesis about compressor cascade. Basically i am running 2D simulations on different profile. The bi-dimensional mesh (70000 grid points )is extracted as a slice from the 3D mesh at midspan. I noticed, especially at high mach number some strange behavior at the inlet boundary. If i plot the gradient of density (schlieren image) i noticed some huge density variations at the inlet, near the boundary of inlet block where the periodicity conditions are imposed. Seems that these variations are not caused by shocks. I also tried different meshes, different inlet boundaries (different distances) but nothing seems changed. Any ideads? Thank you so much for the help!
Federico