But actually 1 in 105 for a velocity of 0.9m/s & 1 in 150 for a velocity of 0.75m/s.
Aman Gautam said:
(Wed, Dec 10, 2014 07:52:36 PM)
@Sandeep.
Greater is the gradient, greater is the velocity. Thus your point is wrong and as for 225 mm diameter, velocity should be 1 m/s. So it would require the highest gradient.
Manohar said:
(Thu, Jul 9, 2015 05:06:58 PM)
Yes, the gradient, 1 in 105 is greater than 1 in 150.
Ganesh said:
(Thu, Oct 29, 2015 07:35:15 PM)
Which formula is used here to calculate self cleansing formula?
Akash said:
(Sat, Dec 26, 2015 05:31:39 PM)
V-under root (8 beta under f multiply by (specific gravity of solids- 1)*g*diameter of solids). Find v and using manning or any other formula find slope. But data is not sufficient.
Narayan said:
(Sun, Jan 17, 2016 09:52:20 AM)
Velocity of the sewer is 0.9 to 0.75 m^3/s.
So assume velocity of sewer V = 0.9 m/s.
And using the manning's formula:
V = R^2/3*s^1/2/n but the wastage flow is not specify.