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

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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. Check FAQs

P = \frac{Q w}{3 \cdot y^{\frac{3}{2}}}

P - Perimeter of Grate Opening?Q_w - Water Flow?y - Depth of Flow at Inlet?

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

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Here is how the Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches equation looks like with Values.

Here is how the Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches equation looks like with Units.

Here is how the Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches equation looks like.

5.0009 = \frac{14.61}{3 \cdot {7.117}^{\frac{3}{2}}}

5.0009ft = \frac{14.61m³/s}{3 \cdot {7.117ft}^{\frac{3}{2}}}

5.0009 = \frac{14.61}{3 \cdot {7.117}^{\frac{3}{2}}}

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

Follow our step by step solution on how to calculate Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches?

FIRST Step Consider the formula

P = \frac{Q w}{3 \cdot y^{\frac{3}{2}}}

Next Step Substitute values of Variables

∴

P = \frac{14.61m³/s}{3 \cdot {7.117ft}^{\frac{3}{2}}}

Next Step Convert Units

∴

P = \frac{14.61m³/s}{3 \cdot {2.1693m}^{\frac{3}{2}}}

Next Step Prepare to Evaluate

∴

P = \frac{14.61}{3 \cdot {2.1693}^{\frac{3}{2}}}

Next Step Evaluate

∴

P = 1.52426707407571m

Next Step Convert to Output's Unit

∴

P = 5.0008762272625ft

LAST Step Rounding Answer

∴

P = 5.0009ft

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

Variables

Perimeter of Grate Opening

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.

Symbol: P

Measurement: LengthUnit: ft

Note: Value should be greater than 0.

Formulas to find Perimeter of Grate Opening

Water Flow

The Water Flow refers to the movement of water through various natural or engineered systems.

Symbol: Q_w

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value can be positive or negative.

Formulas to find Water Flow

Depth of Flow at Inlet

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.

Symbol: y

Measurement: LengthUnit: ft

Note: Value can be positive or negative.

Formulas to find Depth of Flow at Inlet

Other formulas in Disposing of Storm Water category

Go Runoff Quantity with Full Gutter Flow

Q ro = 0.7 \cdot L o \cdot {(a + y)}^{\frac{3}{2}}

Go Length of Opening given Runoff Quantity with Full Gutter Flow

L o = \frac{Q ro}{0.7 \cdot {(a + y)}^{\frac{3}{2}}}

Go Depression in Curb Inlet given Runoff Quantity with Full Gutter flow

a = ({(\frac{Q ro}{0.7 \cdot L o})}^{\frac{2}{3}}) - y

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

y = ({(\frac{Q ro}{0.7 \cdot L o})}^{\frac{2}{3}}) - a

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

Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches evaluator uses Perimeter of Grate Opening = Water Flow/(3*Depth of Flow at Inlet^(3/2)) to evaluate the Perimeter of Grate Opening, The Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches is defined as the perimeter of grate opening over which water may flow when flow depth is up to 4.8 inches. Perimeter of Grate Opening is denoted by P symbol.

How to evaluate Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches using this online evaluator? To use this online evaluator for Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches, enter Water Flow (Q_w) & Depth of Flow at Inlet (y) and hit the calculate button.

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

What is the formula to find Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches?

The formula of Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches is expressed as Perimeter of Grate Opening = Water Flow/(3*Depth of Flow at Inlet^(3/2)). Here is an example- 128.9935 = 14.61/(3*2.16926160000868^(3/2)).

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

With Water Flow (Q_w) & Depth of Flow at Inlet (y) we can find Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches using the formula - Perimeter of Grate Opening = Water Flow/(3*Depth of Flow at Inlet^(3/2)).

Can the Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches be negative?

No, the Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches, measured in Length cannot be negative.

Which unit is used to measure Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches?

Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches is usually measured using the Foot[ft] for Length. Meter[ft], Millimeter[ft], Kilometer[ft] are the few other units in which Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches can be measured.

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