Inlet Capacity for Flow Depth Calculator

✖Perimeter of grate opening is the length of the circumference of grate opening over which water may flow.ⓘ Perimeter of grate opening [P]			+10% -10%
✖Depth of Flow at Inlet is the flow length at the inlet.ⓘ Depth of flow at Inlet [y]			+10% -10%

✖Water Flow is rate of flow of water.ⓘ Inlet Capacity for Flow Depth [Q]

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Formula

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Inlet Capacity for Flow Depth

Formula

`"Q" = 3*"P"*"y"^(3/2)`

Example

`"1.857965m³/s"=3*"5ft"*("1.8ft")^(3/2)`

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Inlet Capacity for Flow Depth Solution

STEP 0: Pre-Calculation Summary

Formula Used

Water Flow = 3*Perimeter of grate opening*Depth of flow at Inlet^(3/2)
Q = 3*P*y^(3/2)
This formula uses 3 Variables

Variables Used

Water Flow - (Measured in Cubic Meter per Second) - Water Flow is rate of flow of water.
Perimeter of grate opening - (Measured in Meter) - Perimeter of grate opening is the length of the circumference of grate opening over which water may flow.
Depth of flow at Inlet - (Measured in Meter) - Depth of Flow at Inlet is the flow length at the inlet.

STEP 1: Convert Input(s) to Base Unit

Perimeter of grate opening: 5 Foot --> 1.5240000000061 Meter (Check conversion here)
Depth of flow at Inlet: 1.8 Foot --> 0.548640000002195 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q = 3*P*y^(3/2) --> 3*1.5240000000061*0.548640000002195^(3/2)

Evaluating ... ...

Q = 1.85796454997621

STEP 3: Convert Result to Output's Unit

1.85796454997621 Cubic Meter per Second --> No Conversion Required

FINAL ANSWER

1.85796454997621 ≈ 1.857965 Cubic Meter per Second <-- Water Flow

(Calculation completed in 00.004 seconds)

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Credits

Created by Mridul Sharma

Indian Institute of Information Technology (IIIT), Bhopal

Mridul Sharma has created this Calculator and 200+ more calculators!

Verified by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has verified this Calculator and 600+ more calculators!

< 10+ Disposing of storm water Calculators

Depth of Flow at Inlet when Runoff Quantity with Full Gutter Flow is Giiven

Go Depth of flow at Inlet = ((Quantity of Runoff/(0.7*Length of Opening))^(2/3))-Depression in Curb Inlet

Depression in Curb Inlet given Runoff Quantity with Full Gutter flow

Go Depression in Curb Inlet = ((Quantity of Runoff/(0.7*Length of Opening))^(2/3))-Depth of flow at Inlet

Length of Opening given Runoff Quantity with Full Gutter Flow

Go Length of Opening = Quantity of Runoff/(0.7*(Depression in Curb Inlet+Depth of flow at Inlet)^(3/2))

Runoff Quantity with Full Gutter Flow

Go Quantity of Runoff = 0.7*Length of Opening*(Depression in Curb Inlet+Depth of flow at Inlet)^(3/2)

Depth of Flow given Inlet Capacity for Flow Depth more than 1ft 5in

Go Depth = ((Inlet Capacity/(0.6*Area))^2)*(1/(2*Acceleration due to Gravity))

Area of Opening given Inlet Capacity for Flow Depth more than 1ft 5in

Go Area = Inlet Capacity/(0.6*(2*Acceleration due to Gravity*Depth)^(1/2))

Inlet Capacity for Flow Depth more than 1ft 5in

Go Inlet Capacity = 0.6*Area*((2*Acceleration due to Gravity*Depth)^(1/2))

Depth of Flow at Inlet given Inlet Capacity for Flow Depth up to 4.8in

Go Depth of flow at Inlet = (Water Flow/(3*Perimeter of grate opening))^(2/3)

Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches

Go Perimeter of grate opening = Water Flow/(3*Depth of flow at Inlet^(3/2))

Inlet Capacity for Flow Depth

Go Water Flow = 3*Perimeter of grate opening*Depth of flow at Inlet^(3/2)

Inlet Capacity for Flow Depth Formula

Water Flow = 3*Perimeter of grate opening*Depth of flow at Inlet^(3/2)
Q = 3*P*y^(3/2)

What is an inlet structure?

Inlet structures are built to control the amount of water flowing into the pond at all times. An inlet structure may be built for a pond supplied through a feeder canal, for example by diverted stream water, a spring outside the pond, a well or a pumped water supply.

How to Calculate Inlet Capacity for Flow Depth?

Inlet Capacity for Flow Depth calculator uses Water Flow = 3*Perimeter of grate opening*Depth of flow at Inlet^(3/2) to calculate the Water Flow, The Inlet Capacity for Flow Depth up to 4.8in formula calculates the capacity of the structures built to control the flow of water known as inlets when flow depth is upto 4.8 inches. Water Flow is denoted by Q symbol.

How to calculate Inlet Capacity for Flow Depth using this online calculator? To use this online calculator for Inlet Capacity for Flow Depth, enter Perimeter of grate opening (P) & Depth of flow at Inlet (y) and hit the calculate button. Here is how the Inlet Capacity for Flow Depth calculation can be explained with given input values -> 1.857965 = 3*1.5240000000061*0.548640000002195^(3/2).

FAQ

What is Inlet Capacity for Flow Depth?

The Inlet Capacity for Flow Depth up to 4.8in formula calculates the capacity of the structures built to control the flow of water known as inlets when flow depth is upto 4.8 inches and is represented as Q = 3*P*y^(3/2) or Water Flow = 3*Perimeter of grate opening*Depth of flow at Inlet^(3/2). Perimeter of grate opening is the length of the circumference of grate opening over which water may flow & Depth of Flow at Inlet is the flow length at the inlet.

How to calculate Inlet Capacity for Flow Depth?

The Inlet Capacity for Flow Depth up to 4.8in formula calculates the capacity of the structures built to control the flow of water known as inlets when flow depth is upto 4.8 inches is calculated using Water Flow = 3*Perimeter of grate opening*Depth of flow at Inlet^(3/2). To calculate Inlet Capacity for Flow Depth, you need Perimeter of grate opening (P) & Depth of flow at Inlet (y). With our tool, you need to enter the respective value for Perimeter of grate opening & Depth of flow at Inlet and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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