It is shown that the process of eddy formation behind a coastal cape-like obstacle essentially depends on the method of generating the longshore current. Numerical simulations of the flow around a cape generated by transient longshore wind reveal different modes of eddy formation in rotating stratified environment depending on dimensionless parameters such as the Burger and Kibel-Rossby numbers, Bu and Ro, respectively. At Ro<0.6 depending on the magnitude of Bu either trapped anticyclonic or cyclonic eddy at Bu<0.2 or periodic eddy shedding at Bu>0.2 is realized. The eddies are weakened and stretched along the coastline at 0.4–0.61.4.
leeward eddy shedding, numerical simulation, Burger and Kibel-Rossby numbers
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