Investigation on flow patterns and local stresses in sharp-edged and pyramidal orifices during high-pressure homogenization

Image of flow patterns

This investigation focuses on the influence of the geometry of the disruption unit on the local flow pattern and resulting stresses. Previous experimental works have demonstrated that even small changes in the geometry result in significant changes on the DSD. In addition, CFD simulations have shown that the elongation rate in front of the smallest cross section depends on the geometry of the disruption unit. These higher elongation rates may be responsible for smaller droplets. However, due to the extremely small dimensions of the disruption unit, the CFD results could not be corroborated up to now.

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