Flow through Open Channels by Rajesh
Srivastava.
Errata:
(Readers are encouraged to mail me at rajeshs@iitk.ac.in
about any errors they spot. A treat is promised to the first spotter of an
error when we meet the next time. The
errors have been corrected in the first reprint published in August 2009,
except in chapters 2, 7, 8 and 9, shown in Red below)
Chapter No. 
Error in/on 
Spotted by 
Correction 
1 


The flow depth should be y and not Y The sign > is missing between V and √gD 
2 

Pranjal Dixit Pranjal Dixit 
basis should be replaced by basic There is a Θ missing in the
equation, before the [ change the dashed line to dotted Area should be 20.12, R is 0.1841,
Q is 13.72 Main channel: A is 10.12, P is 9.376, R is
1.079, V is 2.218, Q is 22.44 Total discharge is 26.98 In answer, 2.26 should be 2.6 
3 

Sonali Pattnayak 
"opposition current" should be "opposing current" The control volume is enclosed by lines perpendicular to the bed and not vertical as shown v_{x} should be v_{X} "using the CauchySchwarz inequality" should be replaced by "writing v_{X} as sum of mean velocity, V, and deviation v' " Replace by this. At the end of the solution, the phrase "As seen in Example 3.2" should be deleted "Froude number will increase" should be "Froude number will decrease" Eq. (3.33) should be Eq. (3.23) The yaxis labels 1 and 10 should be lowered (Eq. 3.38) should be Eq. (3.38) 
4 


9.5 m)^{3} should be 9.5 m^{3}) t should be the greek letter l P_w should be shown as the pressure force on weir The upper and lower nappe should be labeled The table is missing a row. Correct table is here. "Table 4.2" should be "Table 4.1" 
5 


yaxis labels should be 0.5, 1.0, and 1.5 not 1,2,3 (a) and (b) have been switched CV should be shown by a rectangular area 
6 



7 


In the approximation for E(k),
4630151 should be 0.4630151 
8 


The line shown at T=1 should be at T=3. See here. exp(0.05T) should be exp(0.5T).
The value of h should be 6.5 mm, instead
of 0.7 mm. The figure for J_{2} is incorrect (actually the same figure is repeated). The correct figure is here. After Eq. (8.48), "Eq. (8.35)" should be "Eq. (8.48)" The factor [1/{(1+m^{2})sin^{2}}] is incorrect. The correct expression is same as that in Eq. (8.48) 
9 

Dr. Nosrat Maghsoudi 
The mass released is 100 tonnes NOT
100 kg. Accordingly, in the solutions: Ex. 9.1: m_{p}=100 tonne, Ex.
9.3: m_{pl}=2x10^{10} mg/m, Ex. 9.4: m_{pp}=2x10^{7}
mg/m^{2}. The concentration units of mg/l are correct! Total mass is m_{pp} By not m_{pp} as printed Missing: it said that velocity and dispersion are assumed to be constant 
Appendices 


Matrix elements are not properly aligned 