Shock Modon: A New Type of Coherent Structure in Rotating Shallow Water

Details Shock Modon: A New Type of Coherent Structure in Rotating Shallow Water Shock Modon: A New Type of Coherent Structure in Rotating Shallow Water

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012phrvl.108d4502l&link_type=abstract

Physical Review Letters, vol. 108, Issue 4, id. 044502

Physics

Coherent Structures, Vortex Dynamics, Transonic Flows, Magnetohydrodynamics And Plasmas

Scientific paper

We show that a new type of coherent structure, a shock modon, exists in a rotating shallow water model at large Rossby numbers. It is a combination of an asymmetric vortex dipole with a stationary hydraulic jump. The structure is long living, despite the energy dissipation by the hydraulic jump, and moving along a circular path. Collisions of shock modons can be elastic, or lead to formation of shock tripoles.

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