Hi Aero2020,nDo you have evaluate your mesh?nI think probably that the mesh is not good to describe your phisic problem. Are you in Grid Indipendent solution?nDo you have evaluate your y+ for your turbolence model? Is the inflation layer correct? nDo you begin the calculation with first order to prepare the solution field and than change to second order?nWithout being presumptuous i think you have to see the theory before and then start the calculation.nRegards,nFedericon