Spatial Network Generation Tool for Performance Analysis of Water Distribution Networks - Pattern Recognition for Reliability Assessment of Water Distribution Networks - page 83

It is important to remember that the units of the parameters assigned by NGT will comply
with default units of the initial EPANET file prepared for network generation process, which
without any change will be the Imperial units and Hazen-Wiliams roughness constant.
Possible conversion of input data will have to be done manually as EPANET does not
recalculate these figures automatically.

4.6 NETWORK GENERATION TOOL IN USE

The network generation tool has been developed in C++ programming language using the
EPANET toolkit function library. The tool runs within Microsoft Visual C++ 2010 Express
platform and manipulates EPANET input file prepared in INP-format, which contains initial
information about reservoirs/tanks/(demand) nodes. One example of such set of junctions
consisting of single source and 19 nodes is shown in Figure 4.16. The shortened layout of the
corresponding *.inp file is given in Table 4.13.

2

10

11

1

17

12

18

13

3

19

14

15

4

16

5

8

6

7

9

20

Figure 4.16 Layout of EPANET input prepared for network generation

Table 4.13 Network parameters in EPANET INP-format

[TITLE]

[JUNCTIONS]
;ID Elev Demand Pattern
1 0 0 ;

4 0 0 ;

5 0 0 ;

.....etc.

[RESERVOIRS]
;ID Head Pattern
2 0 ;

.....etc.

[TANKS]
;ID Elevation InitLevel MinLevel MaxLevel Diameter MinVol VolCurve