Publikationsrepositorium - Helmholtz-Zentrum Dresden-Rossendorf

Motivation:

The lift force on a single bubble changes it sign with increasing Eo-Number
Lift formulation, Tomiyama:
𝐹_𝐿𝑖𝑓𝑡= −𝐶_𝐿 𝜌_𝐿 𝛼_𝐺 (𝒗_(𝐵𝑢𝑏.)−𝒗_𝐿𝑖𝑞 ) dv_Liq/𝑑𝑥
𝐶_𝐿≅0.6−0.1𝐸𝑜_𝐻 , 4≤𝐸𝑜_𝐻≤8
Hypothesis: The sign change occur through vortex shedding at the bubble in a shear field