PROBLEM $16$

Please determine the combination of gradually$-$varied and rapidly$-$varied flows that will

likely take place in the set$-$up of Fig. $3.$ Please indicate as many alternatives as you can.

Consider two cases: when the separation between the gate and the break in slope is $1)$

small and $2)$ large in different plots. Please indicate the zones of GVF and RVF$.$

Figure $3$: The slope upstream of the change in slope is larger than the critical slope; the

downstream slope is smaller than the critical slope.