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Vessel Blockage Ratio Formula

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Vessel Blockage Ratio is a measure used in maritime engineering and hydrodynamics to describe the extent to which a vessel occupies a waterway, such as a canal, river, or lock. Check FAQs

S = \frac{A m}{d b \cdot W}

S - Vessel Blockage Ratio?A_m - Vessel’s Midsection Wetted Cross-Sectional Area?d_b - Water Depth at Breaking?W - Channel Width corresponding to Mean Water Depth?

Vessel Blockage Ratio Example

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Here is how the Vessel Blockage Ratio equation looks like with Values.

Here is how the Vessel Blockage Ratio equation looks like with Units.

Here is how the Vessel Blockage Ratio equation looks like.

0.0108 = \frac{31}{55 \cdot 52}

0.0108 = \frac{31m²}{55m \cdot 52m}

0.0108 = \frac{31}{55 \cdot 52}

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Vessel Blockage Ratio Solution

Follow our step by step solution on how to calculate Vessel Blockage Ratio?

FIRST Step Consider the formula

S = \frac{A m}{d b \cdot W}

Next Step Substitute values of Variables

∴

S = \frac{31m²}{55m \cdot 52m}

Next Step Prepare to Evaluate

∴

S = \frac{31}{55 \cdot 52}

Next Step Evaluate

∴

S = 0.0108391608391608

LAST Step Rounding Answer

∴

S = 0.0108

Vessel Blockage Ratio Formula Elements

Variables

Vessel Blockage Ratio

Vessel Blockage Ratio is a measure used in maritime engineering and hydrodynamics to describe the extent to which a vessel occupies a waterway, such as a canal, river, or lock.

Symbol: S

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Vessel Blockage Ratio

Vessel’s Midsection Wetted Cross-Sectional Area

Vessel’s Midsection Wetted Cross-Sectional Area is the area of the vertical plane that cuts through the widest part (beam) of the submerged portion of a vessel's hull.

Symbol: A_m

Measurement: AreaUnit: m²

Note: Value can be positive or negative.

Formulas to find Vessel’s Midsection Wetted Cross-Sectional Area

Water Depth at Breaking

Water Depth at Breaking is the depth of water where ocean surface waves start to break as they approach the shore which depends on the wave climate and is therefore highly variable.

Symbol: d_b

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Water Depth at Breaking

Channel Width corresponding to Mean Water Depth

Channel Width corresponding to Mean Water Depth is the width of a natural or engineered channel where the average depth of the water is taken into consideration.

Symbol: W

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Channel Width corresponding to Mean Water Depth

Other formulas in Flushing or Circulation Processes and Vessel Interactions category

Go Average per Cycle Exchange Coefficient

E = 1 - \frac{{(\frac{C i}{C o})}^{1}}{i}

Go Initial Concentration of Substance in Harbor Water

C o = \frac{C i}{{(1 - E)}^{i}}

Go Concentration of Substance after i Tidal Cycles

C i = C o \cdot {(1 - E)}^{i}

Go Individual Wave Celerity created by Moving Vessel

C = V s \cdot \cos (θ)

How to Evaluate Vessel Blockage Ratio?

Vessel Blockage Ratio evaluator uses Vessel Blockage Ratio = Vessel’s Midsection Wetted Cross-Sectional Area/(Water Depth at Breaking*Channel Width corresponding to Mean Water Depth) to evaluate the Vessel Blockage Ratio, The Vessel Blockage Ratio formula refers to the dimensionless parameter used in naval architecture and marine engineering to quantify the extent to which a vessel obstructs the flow of water in a confined channel or waterway. It is an important factor in understanding the hydrodynamic effects and navigational challenges posed by a vessel in restricted waters, such as canals, rivers, and harbor entrances. Vessel Blockage Ratio is denoted by S symbol.

How to evaluate Vessel Blockage Ratio using this online evaluator? To use this online evaluator for Vessel Blockage Ratio, enter Vessel’s Midsection Wetted Cross-Sectional Area (A_m), Water Depth at Breaking (d_b) & Channel Width corresponding to Mean Water Depth (W) and hit the calculate button.

FAQs on Vessel Blockage Ratio

What is the formula to find Vessel Blockage Ratio?

The formula of Vessel Blockage Ratio is expressed as Vessel Blockage Ratio = Vessel’s Midsection Wetted Cross-Sectional Area/(Water Depth at Breaking*Channel Width corresponding to Mean Water Depth). Here is an example- 0.010839 = 31/(55*52).

How to calculate Vessel Blockage Ratio?

With Vessel’s Midsection Wetted Cross-Sectional Area (A_m), Water Depth at Breaking (d_b) & Channel Width corresponding to Mean Water Depth (W) we can find Vessel Blockage Ratio using the formula - Vessel Blockage Ratio = Vessel’s Midsection Wetted Cross-Sectional Area/(Water Depth at Breaking*Channel Width corresponding to Mean Water Depth).

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Vessel Blockage Ratio Formula

Vessel Blockage Ratio Example

Vessel Blockage Ratio Solution

Vessel Blockage Ratio Formula Elements

Other formulas in Flushing or Circulation Processes and Vessel Interactions category

How to Evaluate Vessel Blockage Ratio?

FAQs on Vessel Blockage Ratio

Variable Name