(1973) n°3 - Royal Academy for Overseas Sciences

— 598 —
impermeable layer, Uo is the component of uniform flow towards
the sinks, and Q is the combined sink strength,
(2): do = D /L ,
where D is the distance of each sink from the interface,
(3): « = l/2rKt/Q,
in which Kt is the coefficient of trainsverse dispersion. e1/2 is
the characteristic thickness of the mixing layer.
It was shown that when the product uodo < 1/2, two distant
stagnation points form at the interface, as is sketched in figure
10, and saline water from the upper half of the mixing layer
is drawn into the upper sink. The two stagnation points coalesce
for uodo = 1/2, (figure 10b). If uodo > 1/2, separate stagna-