ON THE VISCOUS DESTABILIZATION OF LONGSHORE CURRENTS

Uday Putrevu, James T. Kirby, Joan Oltman-Shay, H. Tuba Ozkan-Haller

Abstract


The effects of lateral mixing on the stability of longshore currents are examined. For the model problem originally considered by Bowen and Holman (1989), it is shown that the inclusion of lateral mixing changes the stability characteristics of the longshore current. In particular, it eliminates the low wavenumber cutoff predicted by the inviscid theory.

Keywords


current; longshore current; current destabilization;

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