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Proportionate Discharge is the ratio of discharge while running partially full to running full. Check FAQs
Pq=VsaVA
Pq - Proportionate Discharge?Vs - Velocity in a Partially Running Sewer?a - Area of Partially Full Sewers?V - Velocity While Running Full?A - Area of Running Full Sewers?

Proportionate Discharge given Area of Cross-Section Example

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Here is how the Proportionate Discharge given Area of Cross-Section equation looks like with Values.

Here is how the Proportionate Discharge given Area of Cross-Section equation looks like with Units.

Here is how the Proportionate Discharge given Area of Cross-Section equation looks like.

0.5386Edit=4.6Edit3.8Edit6.01Edit5.4Edit
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Proportionate Discharge given Area of Cross-Section Solution

Follow our step by step solution on how to calculate Proportionate Discharge given Area of Cross-Section?

FIRST Step Consider the formula
Pq=VsaVA
Next Step Substitute values of Variables
Pq=4.6m/s3.86.01m/s5.4
Next Step Prepare to Evaluate
Pq=4.63.86.015.4
Next Step Evaluate
Pq=0.538608492019474
LAST Step Rounding Answer
Pq=0.5386

Proportionate Discharge given Area of Cross-Section Formula Elements

Variables
Proportionate Discharge
Proportionate Discharge is the ratio of discharge while running partially full to running full.
Symbol: Pq
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Velocity in a Partially Running Sewer
Velocity in a Partially Running Sewer is the speed of flow when the sewer isn't fully filled, influenced by depth and slope.
Symbol: Vs
Measurement: SpeedUnit: m/s
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.
Velocity While Running Full
Velocity while Running Full refers to the speed of fluid flow in a pipe when it's completely filled, influenced by pipe slope and roughness.
Symbol: V
Measurement: SpeedUnit: m/s
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.

Other Formulas to find Proportionate Discharge

​Go Proportionate Discharge using Discharge when Pipe Running Full
Pq=qQ
​Go Proportionate Discharge given Central Angle
Pq=((central360π180)-(sin(central)2π))(1-(360π180)sin(central)2πcentral)

Other formulas in Proportionate Discharge category

​Go Discharge when Pipe is Running Full using Proportionate Discharge
Q=(qPq)
​Go Area of Cross-section while Running Full given Proportionate Discharge
A=aVsVPq
​Go Velocity while Running Full given Proportionate Discharge
V=VsaPqA

How to Evaluate Proportionate Discharge given Area of Cross-Section?

Proportionate Discharge given Area of Cross-Section evaluator uses Proportionate Discharge = (Velocity in a Partially Running Sewer*Area of Partially Full Sewers)/(Velocity While Running Full*Area of Running Full Sewers) to evaluate the Proportionate Discharge, The Proportionate Discharge given Area of Cross-Section is defined as the ratio of the flow rate in a partially filled pipe to the flow rate when the pipe is fully filled. Proportionate Discharge is denoted by Pq symbol.

How to evaluate Proportionate Discharge given Area of Cross-Section using this online evaluator? To use this online evaluator for Proportionate Discharge given Area of Cross-Section, enter Velocity in a Partially Running Sewer (Vs), Area of Partially Full Sewers (a), Velocity While Running Full (V) & Area of Running Full Sewers (A) and hit the calculate button.

FAQs on Proportionate Discharge given Area of Cross-Section

What is the formula to find Proportionate Discharge given Area of Cross-Section?
The formula of Proportionate Discharge given Area of Cross-Section is expressed as Proportionate Discharge = (Velocity in a Partially Running Sewer*Area of Partially Full Sewers)/(Velocity While Running Full*Area of Running Full Sewers). Here is an example- 0.538608 = (4.6*3.8)/(6.01*5.4).
How to calculate Proportionate Discharge given Area of Cross-Section?
With Velocity in a Partially Running Sewer (Vs), Area of Partially Full Sewers (a), Velocity While Running Full (V) & Area of Running Full Sewers (A) we can find Proportionate Discharge given Area of Cross-Section using the formula - Proportionate Discharge = (Velocity in a Partially Running Sewer*Area of Partially Full Sewers)/(Velocity While Running Full*Area of Running Full Sewers).
What are the other ways to Calculate Proportionate Discharge?
Here are the different ways to Calculate Proportionate Discharge-
  • Proportionate Discharge=Discharge when Pipe is Running Partially Full/Discharge when Pipe is Running FullOpenImg
  • Proportionate Discharge=((Central Angle/(360*pi/180))-(sin(Central Angle)/(2*pi)))*(1-((360*pi/180)*sin(Central Angle))/(2*pi*Central Angle))OpenImg
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