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The NASA Launch Services Program has funded several propellant slosh related projects over the years with the goal of obtaining experimental data to anchor CFD predictions.
STAR-CCM+ is used to create a CFD model of water sloshing in an 8” diameter spherical tank. The predictions from this CFD slosh model are compared to experimental data to validate the results. The data compared include slosh natural frequency, damping rate and free surface topology. These important validations allow us to increase our confidence in STAR-CCM+ for use on NASA missions.