Civil Engineering - Waste Water Engineering - Discussion
Discussion Forum : Waste Water Engineering - Section 1 (Q.No. 33)
33.
If the side of a square sewer is 1000 mm, the diameter of a hydraulically equivalent circular section, is
Discussion:
16 comments Page 1 of 2.
Jay said:
5 years ago
@Gugu.
Use Mannings formula for velocity and multiply with Area to find discharge. Hydraulic equivalent means having the same discharge. So equate discharge from both square and a circular section. You will get your answer.
Use Mannings formula for velocity and multiply with Area to find discharge. Hydraulic equivalent means having the same discharge. So equate discharge from both square and a circular section. You will get your answer.
Zahir shah said:
8 years ago
Relation between square and circular sewer :-
π * D^(8/3) = 4 * b^(8/3)
D^(8/3) = 4 * b^(8/3)
D^(8/3) = 4 * 1000^(8/3)/ 3.14
D^(8/3) = 127323954.47
Or D = 127323954.47^(3/8)
So D = 1094.82 say 1095.
π * D^(8/3) = 4 * b^(8/3)
D^(8/3) = 4 * b^(8/3)
D^(8/3) = 4 * 1000^(8/3)/ 3.14
D^(8/3) = 127323954.47
Or D = 127323954.47^(3/8)
So D = 1094.82 say 1095.
(4)
Ankur said:
9 years ago
Two section of different shapes is said to be hydraulically equivalent if they carry same discharge while running full on the same grade and are of the same material.
KSD said:
8 years ago
Relation between circular and square sewers is (pi*D^(8/3))=(4*B^(8/3)),
where D- diameter of circular sewer and B- side of a square sewer.
where D- diameter of circular sewer and B- side of a square sewer.
Rajmohan said:
10 years ago
Level of sewage flow required. If 3/4 full flowing. Then calc Hyd radius of channel and equate HYD with circular section HYD.
Seazzzz said:
10 years ago
de = 1.30 x((a x b)^0.625/(a + b)^0.25).
where a and b are sides of rectangle. Here a = b since we are dealing with square.
where a and b are sides of rectangle. Here a = b since we are dealing with square.
Rishish saxena said:
6 years ago
The ratio of the dia of a circular section and the side of a square section hydraulically equivalent is 1.095.
(2)
Lakshmi said:
10 years ago
By using manning's formula:
Discharge of square pipe = Discharge of circular pipe.
Discharge of square pipe = Discharge of circular pipe.
Dhanu said:
8 years ago
d=1.094b.
b=side of square.
d=dia of crcular section.
D=1.094 * 1000 = 1094.
b=side of square.
d=dia of crcular section.
D=1.094 * 1000 = 1094.
(3)
Abhishek said:
8 years ago
D=1.1B.
It is the relation between circular and square sewer.
It is the relation between circular and square sewer.
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