FIG. 9. Circulation and momentum balances for idealized inlet at slack before flood:

Hench_and_Luettich_JPO_03
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friction, as a free jet would. Instead, the streamwise

local acceleration sooner. Bottom friction and stream-

pressure gradient turns from favorable to adverse and

wise acceleration contribute little to the streamwise bal-

acts to ``brake'' the flow (Fig. 9f), and this results in

ance.

negative local acceleration (Fig. 9d). Along the sides,

In the normal direction, the primary balance is be-

the ebb momentum is sufficiently weak that the time

tween local rotary acceleration and normal direction

required to ``brake'' the flow is less than that for the

pressure gradient (Figs. 9h,j). Flow direction on the west