In numerical simulations of fuel rod bundle flow fields, the unsteady Navier–Stokes
equations have to be solved in order to determine the time (phase) dependent
characteristics of the flow. In order to validate the simulations results, detailed comparison
with experimental data must be done. Experiments investigating complex flows in rod
bundles with spacer grids that have mixing devices (such as flow mixing vanes) have mostly
been performed using single-point measurements. In order to obtain more details and …