• Corpus ID: 238354178

Unidirectional modes induced by nontraditional Coriolis force in stratified fluids

  title={Unidirectional modes induced by nontraditional Coriolis force in stratified fluids},
  author={N. Perez and Pierre Delplace and A. Venaille},
Using topology, we unveil the existence of new unidirectional modes in compressible rotating stratified fluids. We relate their emergence to the breaking of time-reversal symmetry by rotation and vertical mirror symmetry by stratification and gravity. In contrast with other unidirectional surface waves induced by a field perpendicular to the flow, we stress the role of the Coriolis force’s nontraditional part, induced by a rotation field tangent to the surface. Those modes are trapped along… 

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