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Tambe, S.S. (author), Schrijer, F.F.J. (author), Gangoli Rao, A. (author), Veldhuis, L.L.M. (author)Boundary layer instabilities and the formation of coherent spiral vortices over a rotating cone and ellipsoid are studied experimentally. It is found that under a non-axial inflow, the breaking of symmetry in the flow field significantly disturbs the coherence and delays the formation of spiral vortices to higher local Reynolds numbers (Re_l)...conference paper 2019