Inlet Capacity for Flow Depth Calculator

✖The Perimeter of Grate Opening refers to the boundary or outline of the opening in a grate that allows water to enter a storm water collection or drainage system.ⓘ Perimeter of Grate Opening [P]			+10% -10%
✖The Depth of Flow at Inlet refers to the depth of water in a channel or conduit at the point where water enters a structure, such as a culvert, intake structure, or storm water inlet.ⓘ Depth of Flow at Inlet [y]			+10% -10%

✖The Water Flow refers to the movement of water through various natural or engineered systems.ⓘ Inlet Capacity for Flow Depth [Q_w]

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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_w = 3*P*y^(3/2)
This formula uses 3 Variables

Variables Used

Water Flow - (Measured in Cubic Meter per Second) - The Water Flow refers to the movement of water through various natural or engineered systems.
Perimeter of Grate Opening - (Measured in Meter) - The Perimeter of Grate Opening refers to the boundary or outline of the opening in a grate that allows water to enter a storm water collection or drainage system.
Depth of Flow at Inlet - (Measured in Meter) - The Depth of Flow at Inlet refers to the depth of water in a channel or conduit at the point where water enters a structure, such as a culvert, intake structure, or storm water 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: 7.117 Foot --> 2.16926160000868 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_w = 3*P*y^(3/2) --> 3*1.5240000000061*2.16926160000868^(3/2)

Evaluating ... ...

Q_w = 14.6074401125476

STEP 3: Convert Result to Output's Unit

14.6074401125476 Cubic Meter per Second --> No Conversion Required

FINAL ANSWER

14.6074401125476 ≈ 14.60744 Cubic Meter per Second <-- Water Flow

(Calculation completed in 00.020 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

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< Disposing of Storm Water Calculators

Depression in Curb Inlet given Runoff Quantity with Full Gutter flow

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

Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow

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

Length of Opening given Runoff Quantity with Full Gutter Flow

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

Runoff Quantity with Full Gutter Flow

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

Inlet Capacity for Flow Depth Formula

LaTeX Go

Water Flow = 3*Perimeter of Grate Opening*Depth of Flow at Inlet^(3/2)
Q_w = 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 is defined as the capacity of the structures built to control the flow of water known as inlets when flow depth is up to 4.8 inches. Water Flow is denoted by Q_w 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*2.16926160000868^(3/2).

FAQ

What is Inlet Capacity for Flow Depth?

The Inlet Capacity for Flow Depth up to 4.8in is defined as the capacity of the structures built to control the flow of water known as inlets when flow depth is up to 4.8 inches and is represented as Q_w = 3*P*y^(3/2) or Water Flow = 3*Perimeter of Grate Opening*Depth of Flow at Inlet^(3/2). The Perimeter of Grate Opening refers to the boundary or outline of the opening in a grate that allows water to enter a storm water collection or drainage system & The Depth of Flow at Inlet refers to the depth of water in a channel or conduit at the point where water enters a structure, such as a culvert, intake structure, or storm water inlet.

How to calculate Inlet Capacity for Flow Depth?

The Inlet Capacity for Flow Depth up to 4.8in is defined as the capacity of the structures built to control the flow of water known as inlets when flow depth is up to 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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