Engineering Optimization: Theory and Practice, Fourth Edition

580 Dynamic Programming

Figure 9.21 Typical drainage network.

1 2 3

R 1 R 2 R 3

h 0

h 1 h 2

h 3

D 1 D 2 D 3

h 0

h 1

h 2

D 3

Element 3

D 2

Element 2

D 1

Element 1

h 3

0 1 2 3

l 1 l 2 l 3

(a)

(b)

Figure 9.22 Representationof a three-element pipe segment [9.14].