Civil Engineering Reference
In-Depth Information
tABle 7.7
(Continued)
Distance Elevation Init Head Max Head Min Head Max Vol 3 Vap Press
Point
(m)
(m)
(m)
(m)
(m)
(m3)
(m)
P22:90.00%
140.4
67.4
105.5
144.2
77.2
.000
-10.0
P22:J23
156.0
69.9
105.4
140.4
76.4
.000
-10.0
+ P23:J23
.0
69.9
105.4
140.4
76.4
.000
-10.0
P23:50.00%
11.0
75.8
105.3
138.7
78.7
.000
-10.0
P23:J24
22.0
81.8
105.2
137.8
77.0
.000
-10.0
+ P24:J24
.0
81.8
105.2
137.8
77.0
.000
-10.0
P24:20.00%
16.4
84.5
105.1
140.1
80.9
.000
-10.0
P24:40.00%
32.8
87.2
104.9
140.2
82.4
.000
-10.0
P24:60.00%
49.2
89.8
104.8
138.2
79.8
.189
-10.0
P24:80.00%
65.6
92.5
104.7
137.8
82.5
.664E-01
-10.0
P24:J28
82.0
95.2
104.5
134.7
95.2
.000
-10.0
+ P25:J28
.0
95.2
104.5
134.7
95.2
18.4
-10.0
P25:33.33%
11.9
95.5
104.5
134.4
93.8
.000
-10.0
P25:66.67%
23.7
95.7
104.4
121.1
95.0
.000
-10.0
P25:N1
35.6
95.9
104.3
104.3
104.3
.000
-10.0
+ P0:J1
.0
40.6
40.6
40.6
40.6
.000
-10.0
P0:J2
.5
35.5
40.6
40.6
40.6
.000
-10.0
+ P1:J2
.0
35.5
40.6
40.6
40.6
.000
-10.0
P1:J3
.5
35.5
40.6
40.6
40.6
.000
-10.0
7.3.2 comparison of Present research results with other expert's research
Comparison of present research results (water hammer software modeling and SPSS
modeling), with other expert's research results, shows similarity and advantages:
7.3.2.1 Wylie, E. B., and Streeter, V. L., 1982
Classical water hammer theory neglects convective terms, and assumes fluid wave
speed, c (m/s) depends on the support conditions of the pipes. Among these methods,
MOC-based schemes are most popular because these schemes provide the desirable
attributes of accuracy, numerical efficiency and programming simplicity. This method
has been used in present research [12].
7.3.2.2 Arris S Tijsseling, Alan E Vardy, 2002
Present research assumed 3 states in Field Tests; Transmission Line with surge tank
and Water hammer in leakage and no leakage condition.Comparison shows similarity
in results[13].
7.3.2.3 Ghidaoui and, León et al., 2005
The efficiency of a model is a critical factor for Real-time Control (RTC), since several
simulations are required within a control loop in order to optimize the control strategy.
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