(Amiri & Siahi, 2008)
Baffle Sluice Gate
Larsen and MishraMishra et al.
Larsen and Mishra
Verma and Pasricha
Maheswara et al.
Anwar
Swamee
Renault, 2000b
IO
SIO
IOSOI
Renault,
2000a
Renault, 1990, Renault and
Hemakumara, 1999
IOa
O / OS
I
IOr
O / OS
I / I
Equivalent Hydraulic Sensitivity
Vatankhah et al.
2008
2
1
2
1
RR
O
O
I
I
IOIO O/OI/ISI/IO/O
S
)Iln()Iln()Oln()Oln(
S )1()2(
)1()2(
IOR
2
1
2
1
AA
O
O
I
I
IOIO O/OISI
O/OS
)1()2(
)1()2(
IO II)Oln()Oln(
SA
Swamee
Bos, 1989
gH2aCq d
qCda
gH
Henry
Swamee, 1992
072.0
d a15H
aH611.0C
Ha15H
aHa71.2q
072.0
IOr
1.152aHS 0.5
(H 15a)(H a)
Swamee
H=a
H=a
aHH
H*=a/H
*IOr
* *
1.152HS 0.5
(1 15H )(1 H )
H=1.5aBos, 1989
H*
H*
Anwar, 1990, Mishra et al,
1990
minHmaxH
cmHmin=cmHmax=
Mishra et al, 1990, Verama and Pasricha 1994, Anwar,
1999
m1
qd
minH
m1
1H
1Hm1
2H
2HmaxHm1
H
H=Hmaxm2
H=Hmax
5.0SSS 321
1 d 1 d
d d
min 1
1 2
1 d
d
2
max
(1 m )q (1 m )qln( ) ln( )
q qH H
ln( ) ln( )H H
(1 m )qln( )
q0.5
Hln( )
H
1H2H
m1
3
1
max3
2
min1 HHH
3
2
max3
1
min2 HHH
6/1
max
min1 )
HH
(1m
i(new)
UL iLL i
LL i UL i
LL
UL
S 0.5
H aH a0.072 ln( ) ln( )
H 15a H 15aH
ln( )H
i 1,2,3
LLUL
i
(new)S / S 1
1S
S
S
S
S
S
3
)new(3
2
)new(2
1
)new(1
1(new) min 1(new)
2(new) 1(new) 2(new)
3(new) 2(new) max
S ln(H / H )
S ln(H / H )
S ln(H / H ) 1
1minmax)new(1 HHH
1minmax)new(2 HHH
)new(3)new(2)new(1
)new(1
S/1S/1S/1
S/1
)new(3)new(2)new(1
)new(2)new(1
S/1S/1S/1
S/1S/1
1/32/3
1(new ) 2(new ) 3(new )1/(1/S 1/S 1/S )
min1(new)
max
Hm 1
H
maxH
i(new ) iS / S 1
<m1<
Hmin=15cmHmax=25cmH1
H2ai
q (l/s/cm)
a1
(cm) a2
(cm) a3
(cm)
Anwar,
1999
Anwar
5.0SSS 321
2 d 2 d
d d
min 1
1 2
2 d
2 d
2
max
(1 m )q (1 m )qln( ) ln( )
q qH H
ln( ) ln( )H H
(1 m )qln( )
(1 m )q0.5
Hln( )
H
1H2H2m
)c26/(1
max
min2 )
H
H(1m
c3
1
maxc3
c2
min1 HHH
c3
2
maxc3
c1
min2 HHH
)m1ln(/)m1ln(c 22
H1H2cm2
Hmin=15cmHmax=25cm
m2=
2m
1H2H
max
072.0
3max
3max3
2d H
a15H
aHa
m1
71.2q
1S/S )new(
1S
S
S
S
S
S
3
)new(3
2
)new(2
1
)new(1
2( )
1(new) min 1(new)
2( )
2(new) 1(new) 2(new)
2( ) 2( )
3(new) 2(new) max
ln(1- )
S ln(H / H )
ln(1- )
S ln(H / H )
ln((1 ) / (1 ))1
S ln(H / H )
new
new
new new
m
m
m m
1H2H
2m
2(new)m
1( ) 2( ) 3( )
2( )
(1/(1/ 1/ (1 )/ ))min
max
1
( ) new new newnew
new
S S c S
m
H
H
2(new)m
Fixed point method
1minmax)new(1 HHH
1minmax)new(2 HHH
)new(3new)new(2)new(1
)new(1
S/)c1(S/1S/1
S/1
)new(3new)new(2)new(1
)new(2)new(1
S/)c1(S/1S/1
S/1S/1
(new)S / S 1
HmaxHmin
H1=17cm
H2=19.4cm
q (l/s/cm)
a1
(cm) a2
(cm) a3
(cm)
<m2<
m2
4max
3min1 HHH
maxmin2 HHH
Renault and Hemakumara
Montazar
and KouchakzadehMontazar et al.
.
Mishra et al.
Mishra et al.Anwar
Mishra et al.
Anwar
0
5
10
15
0.2
0.25 0.3
0.35 0.4
0.45 0.5
0.55 0.6
0.65 0.7
qd (lit/s/cm)
Scheme (1) Scheme (2) 3 Baffles Mishra. et. al (1990)
Anwar
REFERENCES Amiri, A. And Siahi, M. K. (2008) Design of irrigation
canals and related structure. Tehran University Nomber 2914. (In Farsi)
Anwar, A. A. (1999). Baffle sluice module with improved performance. J. Irrig. Drain. Eng. 125(2), 91-95.
Bos, M. G. (1989) Discharge measurement structures. International Institute for Land Reclamation and Improvement (ILRI). Publication No. 20. Wageningen. The Netherlands.
Henry, H. R. (1950). Diffusion of submerged jets. By Albertson, M. L., Dai, Y. B., Jensen, R. A. and Rouse, H. Trans 115, 687-694.
Larsen, A. P. and Mishra, P. K. (1990). Constant discharge device for field irrigation. J. Hydr. Res. Delft, The Netherlands. 28(4), 481-489.
Maheswara Babu, B., Mishra, P. K. and Satyanarayana, T. (1996). Performance of baffle-sluice module with change module dimensions. J. Irrig. Drain. Eng. 122(5), 310-313.
Mishra, P. K., Larsen, A. P. and Satyanarayana, T. (1990). Development of Low-Discharge Baffle-Sluice Module. J. Irrig. Drain. Eng. 116(3), 444-453.
Montazar, A., Kouchakzadeh, S. (2006). Hydraulic sensitivity of baffled modules distributors. Journal of applied irrigation science, Germany.
Montazar, A., Kouchakzadeh, S. and MH. Omid. (2005). Hydraulic sensitivity of baffled modules distributors. Proceeding of XXXI IAHR Congress, Seoul, Korea.
Rajaratnam, N. and Subramanya, K. (1967). Flow equation for sluice gate. J. Irrig. Drain. Eng. 3(3), 167-187.
Renault, D. (1999). Offtake Sensitivity, Operation Effectiveness, and Performance of Irrigation System J. Irrig. Drain. Eng. 125(3), 137-147.
Renault, D. (2000a). Re-Engineering Irrigation Management and System Operation. J. Agric. Water Mgmt. 47, 211-226.
Renault, D. (2000b). Aggregated Sensitivity Indicators of Irrigation Systems Hydraulic Behavior. J. Agric. Water Mgmt. 43(2), 151-171.
Renault, D., H. M. Hemakumara (1999). Irrigation Offtakes Sensitivity. J. Irrig. Drain. Eng. 125(3), 131-136.
Swamee, P. K. (1992). Sluice gate discharge equations. J. Irrig. Drain. Eng. 118(1), 56-60.
Vatankhah, A., Kouchakzadeh, S. and Hoorfar, A. (2008). Developing Effective Sensitivity Indicator for Irrigation Network Components. International Journal of Applied Agricultural Research. 3(1), 17-36.
Verma, D. V. S. (1997). Discussion of Performance of baffle-sluice modules with changed moduledimensions, by B. Maheswara Babu., P. K.
Mishra, and T. Satyanarayana. J. Irrig. Drain. Eng, 123(6), 463.
Verma, D. V. S. and Pasricha, A. (1994). Hydraulic characteristics of baffle modules. J. Inst. Engrs. 75,155-158
This document was created with Win2PDF available at http://www.daneprairie.com.The unregistered version of Win2PDF is for evaluation or non-commercial use only.