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Discharge Ratio is the ratio of discharge at partial flow to discharge at full flow. Check FAQs
qsQratio=(Nnp)(aA)(rpfRrf)16
qsQratio - Discharge Ratio?N - Roughness Coefficient for Running Full?np - Roughness Coefficient Partially Full?a - Area of Partially Full Sewers?A - Area of Running Full Sewers?rpf - Hydraulic Mean Depth for Partially Full?Rrf - Hydraulic Mean Depth while Running Full?

Discharge Ratio given Hydraulic Mean Depth for Full Flow Example

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Here is how the Discharge Ratio given Hydraulic Mean Depth for Full Flow equation looks like with Values.

Here is how the Discharge Ratio given Hydraulic Mean Depth for Full Flow equation looks like with Units.

Here is how the Discharge Ratio given Hydraulic Mean Depth for Full Flow equation looks like.

0.5336Edit=(0.74Edit0.9Edit)(3.8Edit5.4Edit)(3.2Edit5.2Edit)16
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Discharge Ratio given Hydraulic Mean Depth for Full Flow Solution

Follow our step by step solution on how to calculate Discharge Ratio given Hydraulic Mean Depth for Full Flow?

FIRST Step Consider the formula
qsQratio=(Nnp)(aA)(rpfRrf)16
Next Step Substitute values of Variables
qsQratio=(0.740.9)(3.85.4)(3.2m5.2m)16
Next Step Prepare to Evaluate
qsQratio=(0.740.9)(3.85.4)(3.25.2)16
Next Step Evaluate
qsQratio=0.533625800781263
LAST Step Rounding Answer
qsQratio=0.5336

Discharge Ratio given Hydraulic Mean Depth for Full Flow Formula Elements

Variables
Discharge Ratio
Discharge Ratio is the ratio of discharge at partial flow to discharge at full flow.
Symbol: qsQratio
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Roughness Coefficient for Running Full
The Roughness Coefficient for Running Full accounts for uniform surface resistance affecting flow velocity and friction loss.
Symbol: N
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Roughness Coefficient Partially Full
Roughness Coefficient Partially Full means roughness coefficient of pipe while running partially full.
Symbol: np
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Area of Partially Full Sewers
The Area of Partially Full Sewers refers to the cross-sectional flow area at a given water depth, crucial for hydraulic and flow rate calculations.
Symbol: a
Measurement: AreaUnit:
Note: Value should be greater than 0.
Area of Running Full Sewers
The Area of Running Full Sewers refers to the total cross-sectional area of the pipe when it is completely filled with fluid.
Symbol: A
Measurement: AreaUnit:
Note: Value should be greater than 0.
Hydraulic Mean Depth for Partially Full
Hydraulic Mean Depth for Partially Full refers to the cross-sectional area of flow divided by the wetted perimeter, adapting to varying water levels.
Symbol: rpf
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Hydraulic Mean Depth while Running Full
Hydraulic Mean Depth while Running Full refers to the ratio of the pipe's full cross-sectional area to its full wetted perimeter.
Symbol: Rrf
Measurement: LengthUnit: m
Note: Value should be greater than 0.

Other Formulas to find Discharge Ratio

​Go Discharge Ratio given Hydraulic Mean Depth Ratio
qsQratio=(Nnp)(aA)(R)16

Other formulas in Discharge and Discharge Ratio through Circular Sewer category

​Go Self Cleansing Discharge given Hydraulic Mean Depth Ratio
q=Q((Nnp)(aA)(R)16)
​Go Self Cleansing Discharge given Hydraulic Mean Depth for Full Flow
q=Q((Nnp)(aA)(rpfRrf)16)

How to Evaluate Discharge Ratio given Hydraulic Mean Depth for Full Flow?

Discharge Ratio given Hydraulic Mean Depth for Full Flow evaluator uses Discharge Ratio = (Roughness Coefficient for Running Full/Roughness Coefficient Partially Full)*(Area of Partially Full Sewers/Area of Running Full Sewers)*(Hydraulic Mean Depth for Partially Full/Hydraulic Mean Depth while Running Full)^(1/6) to evaluate the Discharge Ratio, Discharge Ratio given Hydraulic Mean Depth for Full Flow is defined as the flow rate of a pipe when it's partially full to when it's completely full, indicating efficiency. Discharge Ratio is denoted by qsQratio symbol.

How to evaluate Discharge Ratio given Hydraulic Mean Depth for Full Flow using this online evaluator? To use this online evaluator for Discharge Ratio given Hydraulic Mean Depth for Full Flow, enter Roughness Coefficient for Running Full (N), Roughness Coefficient Partially Full (np), Area of Partially Full Sewers (a), Area of Running Full Sewers (A), Hydraulic Mean Depth for Partially Full (rpf) & Hydraulic Mean Depth while Running Full (Rrf) and hit the calculate button.

FAQs on Discharge Ratio given Hydraulic Mean Depth for Full Flow

What is the formula to find Discharge Ratio given Hydraulic Mean Depth for Full Flow?
The formula of Discharge Ratio given Hydraulic Mean Depth for Full Flow is expressed as Discharge Ratio = (Roughness Coefficient for Running Full/Roughness Coefficient Partially Full)*(Area of Partially Full Sewers/Area of Running Full Sewers)*(Hydraulic Mean Depth for Partially Full/Hydraulic Mean Depth while Running Full)^(1/6). Here is an example- 0.960526 = (0.74/0.9)*(3.8/area_while_running_full)*(3.2/5.2)^(1/6).
How to calculate Discharge Ratio given Hydraulic Mean Depth for Full Flow?
With Roughness Coefficient for Running Full (N), Roughness Coefficient Partially Full (np), Area of Partially Full Sewers (a), Area of Running Full Sewers (A), Hydraulic Mean Depth for Partially Full (rpf) & Hydraulic Mean Depth while Running Full (Rrf) we can find Discharge Ratio given Hydraulic Mean Depth for Full Flow using the formula - Discharge Ratio = (Roughness Coefficient for Running Full/Roughness Coefficient Partially Full)*(Area of Partially Full Sewers/Area of Running Full Sewers)*(Hydraulic Mean Depth for Partially Full/Hydraulic Mean Depth while Running Full)^(1/6).
What are the other ways to Calculate Discharge Ratio?
Here are the different ways to Calculate Discharge Ratio-
  • Discharge Ratio=(Roughness Coefficient for Running Full/Roughness Coefficient Partially Full)*(Area of Partially Full Sewers/Area of Running Full Sewers)*(Hydraulic Mean Depth Ratio)^(1/6)OpenImg
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