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Area Ratio given Expanded or Developed Blade Area of Propeller Calculator

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Mooring Forces Important Formulas of Mooring Forces

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Form Drag Propeller Drag Skin Friction

✖Waterline Length of a Vessel is the length of a ship or boat at the level where it sits in the water.ⓘ Waterline Length of a Vessel [l_wl]			+10% -10%
✖Vessel Beam refers to the width of a vessel, such as a ship or boat, measured at its widest point.ⓘ Vessel Beam [B]			+10% -10%
✖Expanded or Developed Blade Area of a Propeller refers to the surface area of the propeller blades when they are "unwrapped" and laid flat on a plane.ⓘ Expanded or Developed Blade Area of a Propeller [A_p]			+10% -10%

✖Area Ratio is a parameter used to describe the proportion of a specific area relative to another reference area.ⓘ Area Ratio given Expanded or Developed Blade Area of Propeller [A_r]

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Area Ratio given Expanded or Developed Blade Area of Propeller Solution

STEP 0: Pre-Calculation Summary

Formula Used

Area Ratio = Waterline Length of a Vessel*Vessel Beam/(Expanded or Developed Blade Area of a Propeller*0.838)
A_r = l_wl*B/(A_p*0.838)
This formula uses 4 Variables

Variables Used

Area Ratio - Area Ratio is a parameter used to describe the proportion of a specific area relative to another reference area.
Waterline Length of a Vessel - (Measured in Meter) - Waterline Length of a Vessel is the length of a ship or boat at the level where it sits in the water.
Vessel Beam - (Measured in Meter) - Vessel Beam refers to the width of a vessel, such as a ship or boat, measured at its widest point.
Expanded or Developed Blade Area of a Propeller - (Measured in Square Meter) - Expanded or Developed Blade Area of a Propeller refers to the surface area of the propeller blades when they are "unwrapped" and laid flat on a plane.

STEP 1: Convert Input(s) to Base Unit

Waterline Length of a Vessel: 7.32 Meter --> 7.32 Meter No Conversion Required
Vessel Beam: 2 Meter --> 2 Meter No Conversion Required
Expanded or Developed Blade Area of a Propeller: 15 Square Meter --> 15 Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

A_r = l_wl*B/(A_p*0.838) --> 7.32*2/(15*0.838)

Evaluating ... ...

A_r = 1.16467780429594

STEP 3: Convert Result to Output's Unit

1.16467780429594 --> No Conversion Required

FINAL ANSWER

1.16467780429594 ≈ 1.164678 <-- Area Ratio

(Calculation completed in 00.007 seconds)

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< Mooring Forces Calculators

Coefficient of Drag for Winds Measured at 10 m given Drag Force due to Wind

LaTeX Go Coefficient of Drag = Drag Force/(0.5*Air Density*Projected Area of the Vessel*Wind Speed at Height of 10 m^2)

Projected Area of Vessel above Waterline given Drag Force due to Wind

LaTeX Go Projected Area of the Vessel = Drag Force/(0.5*Air Density*Coefficient of Drag*Wind Speed at Height of 10 m^2)

Mass Density of Air given Drag Force due to Wind

LaTeX Go Air Density = Drag Force/(0.5*Coefficient of Drag*Projected Area of the Vessel*Wind Speed at Height of 10 m^2)

Drag Force due to Wind

LaTeX Go Drag Force = 0.5*Air Density*Coefficient of Drag*Projected Area of the Vessel*Wind Speed at Height of 10 m^2

< Important Formulas of Mooring Forces Calculators

Undamped Natural Period of Vessel

LaTeX Go Undamped Natural Period of a Vessel = 2*pi*(sqrt(Virtual Mass of the Ship/Effective Spring Constant))

Individual Stiffness of Mooring Line

LaTeX Go Individual Mooring Line Stiffness = Axial Tension or Load on a Mooring Line/Elongation in the Mooring Line

Mass of Vessel given Virtual Mass of Vessel

LaTeX Go Mass of a Vessel = Virtual Mass of the Ship-Mass of Vessel due to Inertial Effects

Virtual Mass of Vessel

LaTeX Go Virtual Mass of the Ship = Mass of a Vessel+Mass of Vessel due to Inertial Effects

Area Ratio given Expanded or Developed Blade Area of Propeller Formula

LaTeX Go

Area Ratio = Waterline Length of a Vessel*Vessel Beam/(Expanded or Developed Blade Area of a Propeller*0.838)
A_r = l_wl*B/(A_p*0.838)

What causes Skin Friction?

Skin friction drag is caused by the viscosity of fluids and is developed from laminar drag to turbulent drag as a fluid moves on the surface of an object. Skin friction drag is generally expressed in terms of the Reynolds number, which is the ratio between inertial force and viscous force.

How to Calculate Area Ratio given Expanded or Developed Blade Area of Propeller?

Area Ratio given Expanded or Developed Blade Area of Propeller calculator uses Area Ratio = Waterline Length of a Vessel*Vessel Beam/(Expanded or Developed Blade Area of a Propeller*0.838) to calculate the Area Ratio, The Area Ratio given Expanded or Developed Blade Area of Propeller formula is defined as ratio of waterline length times beam to total projected propeller area. Area Ratio is denoted by A_r symbol.

How to calculate Area Ratio given Expanded or Developed Blade Area of Propeller using this online calculator? To use this online calculator for Area Ratio given Expanded or Developed Blade Area of Propeller, enter Waterline Length of a Vessel (l_wl), Vessel Beam (B) & Expanded or Developed Blade Area of a Propeller (A_p) and hit the calculate button. Here is how the Area Ratio given Expanded or Developed Blade Area of Propeller calculation can be explained with given input values -> 1.164678 = 7.32*2/(15*0.838).

FAQ

What is Area Ratio given Expanded or Developed Blade Area of Propeller?

The Area Ratio given Expanded or Developed Blade Area of Propeller formula is defined as ratio of waterline length times beam to total projected propeller area and is represented as A_r = l_wl*B/(A_p*0.838) or Area Ratio = Waterline Length of a Vessel*Vessel Beam/(Expanded or Developed Blade Area of a Propeller*0.838). Waterline Length of a Vessel is the length of a ship or boat at the level where it sits in the water, Vessel Beam refers to the width of a vessel, such as a ship or boat, measured at its widest point & Expanded or Developed Blade Area of a Propeller refers to the surface area of the propeller blades when they are "unwrapped" and laid flat on a plane.

How to calculate Area Ratio given Expanded or Developed Blade Area of Propeller?

The Area Ratio given Expanded or Developed Blade Area of Propeller formula is defined as ratio of waterline length times beam to total projected propeller area is calculated using Area Ratio = Waterline Length of a Vessel*Vessel Beam/(Expanded or Developed Blade Area of a Propeller*0.838). To calculate Area Ratio given Expanded or Developed Blade Area of Propeller, you need Waterline Length of a Vessel (l_wl), Vessel Beam (B) & Expanded or Developed Blade Area of a Propeller (A_p). With our tool, you need to enter the respective value for Waterline Length of a Vessel, Vessel Beam & Expanded or Developed Blade Area of a Propeller 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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