A shear flow instability in cylindrical geometry

Conclusion The results show, that this model experiment is useful for studying the interaction between two parallel shear layers in a rotating system. The structures of the observed instabilities exhibit some similarities with the wake flow behind cylindrical obstacles. Additional investigations in analyzing the dynamical behaviour of the shear instabilities are necessary to get a deeper insight into the physical mechanism. Up to that it is an open question, whether the physical effects described by Meiburg (1987), play an important role in these shear layer instabilities.