Explain the normal depth equation, Civil Engineering

Assignment Help:

Explain the Normal Depth Equation

The equation is derived from the Chezy-Manning equation. As written below it determines the diameter of a circular storm or sanitary sewer when the Qfull, roughness coefficient (n) and slope (s) are known.   

      D = 1.335 (n Qfull /(s) 0.5) 0.375  

Rearranged, the equation can determine Qfull when the inside diameter, roughness coefficient and slope are known.

Qfull 0.375 = (D (s)0.188)/(1.335 (n)0.375)

Rearranged, the equation can determine the slope of a sewer installation if Qfull, roughness coefficient and diameter are known.

      (s)0.5 = (n Qfull)/(D/1.335)2.67


Related Discussions:- Explain the normal depth equation

Calculate the annual cost of alum - coagulation, Incoming water contains 2....

Incoming water contains 2.5 mg/L as a substance of natural alkalinity (HCO 3 - ). The flow rate is 9.5 ML/day). (a) What feed rate is required if the alum dose is 7 mg/L and

What do you mean by settlement cracks, Q. What do you mean by Settlement Cr...

Q. What do you mean by Settlement Cracks? Settlement cracks normally take place in diagonal position. Sometimes vertical cracks may also take place (Figure (a)). Settlement cra

Finite elemenst, can you do finite elements using the weighted residual for...

can you do finite elements using the weighted residual formulation-galerkin method?

Inspection and quality control certificate, Q. Inspection and Quality Contr...

Q. Inspection and Quality Control Certificate : A 'lot' under inspection should be accepted by the inspector when no defect is found in the acceptance level tests and so certif

door shutters, what is the difference between paneled and glazed shutte

what is the difference between paneled and glazed shutter

Laplace transform, Using Laplace transfom, the following differential equat...

Using Laplace transfom, the following differential equation d y dy dt reduces to the algebraic equation of the form Resolve y(s) into partial fractions

Maintenance of concrete roads, Maintenance of Concrete Roads: The mai...

Maintenance of Concrete Roads: The main defects that show up in a concrete road are : (a) cracks (b) loss of sealant (c) spalling at joints (d) loss of texture

Enthalpy, h = u + pv is a combination of properties and hence must also be ...

h = u + pv is a combination of properties and hence must also be a property.  h is the SPECIFIC ENTHALPY in kJ/kg  H = U + pV is the ENTHALPY in kJ

Traverse surveying, How to calculate the whole circle bearing from the incl...

How to calculate the whole circle bearing from the included angles?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd