Figure 9From: Optimal control of buoyancy-driven liquid steel stirring modeled with single-phase Navier–Stokes equationsOptimization of nozzles’ positions. Relative differences of the objectives computed on mesh 4, i.e., the graph shows \((J_{\ast }-J_{\ast }^{\mathrm{default}})/ \lvert J_{\ast }^{\mathrm{default}} \rvert \). The numbers on top of the bars are the respective objective values for the default configurationBack to article page