![]() SimScale has a built-in post-processing environment, which can be accessed by clicking on ‘Solution Fields’ or ‘Post-process results’, as in figure 25. This article gives more insight into convergence in CFD simulations. Smaller residuals indicate a more tightly converged solution. After roughly 600 iterations, the results are very stable.Īlso, make sure to check the convergence plots to see residual levels. For example, let’s have a look at velocity at the outlet: Figure 26: Velocity at the outlet control. So what are the key parameters? For a centrifugal pump simulation, the velocity at the outlet, the pressure at the inlet, and forces onto the impeller are parameters of interest. At this point, the simulation is considered converged. ![]() As the iterations go on, key parameters are expected to stop changing. ![]() With the previously set result controls, it’s possible to assess convergence. You can run multiple simulations in parallel, only changing the flow rate (in the velocity inlet boundary condition).įor more information about pump curves, please check out this blog post. With SimScale, it’s easy to get the pump curve for your geometry.
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