I am conducting a research study on a Hydro Turbine with a Venturi Effect Induced Turbine Enclosure and would desire to determine the velocity at the throat section/middle section of the model as my desired results. However, i tried setting up the CFD system in Simlab with the relative boundary conditions that I think are relevant for the study mainly inlet, outlet, and walls. The convergence plot for my residuals do not converge is my initial assumption I would like to ask for advice on where I went wrong and what I should do in order to improve my convergence for the residuals. I have attached below the necessary details for the boundary conditions, mesh controls, log file, and convergence plots. Thankyou for your help Altair community.