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Propeller Drag due to Form Drag of Propeller with Locked Shaft Formula

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Vessel Propeller Drag refers to the resistance experienced by a ship's propeller as it moves through water. Check FAQs

F c, prop = 0.5 \cdot ρ water \cdot C c, prop \cdot A p \cdot {V c}^{2} \cdot \cos (θ c)

F_{c, prop} - Vessel Propeller Drag?ρ_water - Water Density?C_{c, prop} - Propeller Drag Coefficient?A_p - Expanded or Developed Blade Area of a Propeller?V_c - Average Current Speed?θ_c - Angle of the Current?

Propeller Drag due to Form Drag of Propeller with Locked Shaft Example

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Here is how the Propeller Drag due to Form Drag of Propeller with Locked Shaft equation looks like with Values.

Here is how the Propeller Drag due to Form Drag of Propeller with Locked Shaft equation looks like with Units.

Here is how the Propeller Drag due to Form Drag of Propeller with Locked Shaft equation looks like.

249.485 = 0.5 \cdot 1000 \cdot 1.99 \cdot 15 \cdot {728.2461}^{2} \cdot \cos (1.15)

249.485N = 0.5 \cdot 1000kg/m³ \cdot 1.99 \cdot 15m² \cdot {728.2461m/h}^{2} \cdot \cos (1.15)

249.485 = 0.5 \cdot 1000 \cdot 1.99 \cdot 15 \cdot {728.2461}^{2} \cdot \cos (1.15)

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Propeller Drag due to Form Drag of Propeller with Locked Shaft Solution

Follow our step by step solution on how to calculate Propeller Drag due to Form Drag of Propeller with Locked Shaft?

FIRST Step Consider the formula

F c, prop = 0.5 \cdot ρ water \cdot C c, prop \cdot A p \cdot {V c}^{2} \cdot \cos (θ c)

Next Step Substitute values of Variables

∴

F c, prop = 0.5 \cdot 1000kg/m³ \cdot 1.99 \cdot 15m² \cdot {728.2461m/h}^{2} \cdot \cos (1.15)

Next Step Convert Units

∴

F c, prop = 0.5 \cdot 1000kg/m³ \cdot 1.99 \cdot 15m² \cdot {0.2023m/s}^{2} \cdot \cos (1.15)

Next Step Prepare to Evaluate

∴

F c, prop = 0.5 \cdot 1000 \cdot 1.99 \cdot 15 \cdot {0.2023}^{2} \cdot \cos (1.15)

Next Step Evaluate

∴

F c, prop = 249.484966979929N

LAST Step Rounding Answer

∴

F c, prop = 249.485N

Propeller Drag due to Form Drag of Propeller with Locked Shaft Formula Elements

Variables

Functions

Vessel Propeller Drag

Vessel Propeller Drag refers to the resistance experienced by a ship's propeller as it moves through water.

Symbol: F_{c, prop}

Measurement: ForceUnit: N

Note: Value can be positive or negative.

Formulas to find Vessel Propeller Drag

Water Density

Water Density is mass per unit volume of water.

Symbol: ρ_water

Measurement: DensityUnit: kg/m³

Note: Value should be greater than 0.

Formulas to find Water Density

Propeller Drag Coefficient

Propeller Drag Coefficient refers to the dimensionless parameter that quantifies the resistance encountered by a propeller moving through water.

Symbol: C_{c, prop}

Measurement: NAUnit: Unitless

Note: Value should be between -2.5 to 10.

Formulas to find Propeller Drag Coefficient

Expanded or Developed Blade Area of a Propeller

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.

Symbol: A_p

Measurement: AreaUnit: m²

Note: Value can be positive or negative.

Formulas to find Expanded or Developed Blade Area of a Propeller

Average Current Speed

Average Current Speed for propeller drag refers to calculating propeller drag in water depending on factors, including the type of vessel, size and shape of propeller, and operating conditions.

Symbol: V_c

Measurement: SpeedUnit: m/h

Note: Value can be positive or negative.

Formulas to find Average Current Speed

Angle of the Current

Angle of the Current refers to the direction at which ocean currents or tidal flows approach a coastline or a coastal structure, relative to a defined reference direction.

Symbol: θ_c

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Angle of the Current

cos

Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle.

Syntax: cos(Angle)

Other formulas in Propeller Drag category

Go Undamped Natural Period of Vessel

T n = 2 \cdot π \cdot (\sqrt{\frac{m v}{k tot}})

Go Virtual Mass of Vessel

m v = m + m a

Go Mass of Vessel given Virtual Mass of Vessel

m = m v - m a

Go Individual Stiffness of Mooring Line

k n' = \frac{T n'}{Δl η'}

How to Evaluate Propeller Drag due to Form Drag of Propeller with Locked Shaft?

Propeller Drag due to Form Drag of Propeller with Locked Shaft evaluator uses Vessel Propeller Drag = 0.5*Water Density*Propeller Drag Coefficient*Expanded or Developed Blade Area of a Propeller*Average Current Speed^2*cos(Angle of the Current) to evaluate the Vessel Propeller Drag, The Propeller drag due to form drag of propeller with Locked shaft formula is defined as the resistance encountered by a vessel when the propeller is not rotating but still submerged in water. This is crucial for designing efficient propulsion systems and estimating the power required to overcome resistance during different operational conditions. Vessel Propeller Drag is denoted by F_{c, prop} symbol.

How to evaluate Propeller Drag due to Form Drag of Propeller with Locked Shaft using this online evaluator? To use this online evaluator for Propeller Drag due to Form Drag of Propeller with Locked Shaft, enter Water Density (ρ_water), Propeller Drag Coefficient (C_{c, prop}), Expanded or Developed Blade Area of a Propeller (A_p), Average Current Speed (V_c) & Angle of the Current (θ_c) and hit the calculate button.

FAQs on Propeller Drag due to Form Drag of Propeller with Locked Shaft

What is the formula to find Propeller Drag due to Form Drag of Propeller with Locked Shaft?

The formula of Propeller Drag due to Form Drag of Propeller with Locked Shaft is expressed as Vessel Propeller Drag = 0.5*Water Density*Propeller Drag Coefficient*Expanded or Developed Blade Area of a Propeller*Average Current Speed^2*cos(Angle of the Current). Here is an example- 249.485 = 0.5*1000*1.99*15*0.202290583333333^2*cos(1.15).

How to calculate Propeller Drag due to Form Drag of Propeller with Locked Shaft?

With Water Density (ρ_water), Propeller Drag Coefficient (C_{c, prop}), Expanded or Developed Blade Area of a Propeller (A_p), Average Current Speed (V_c) & Angle of the Current (θ_c) we can find Propeller Drag due to Form Drag of Propeller with Locked Shaft using the formula - Vessel Propeller Drag = 0.5*Water Density*Propeller Drag Coefficient*Expanded or Developed Blade Area of a Propeller*Average Current Speed^2*cos(Angle of the Current). This formula also uses Cosine function(s).

Can the Propeller Drag due to Form Drag of Propeller with Locked Shaft be negative?

Yes, the Propeller Drag due to Form Drag of Propeller with Locked Shaft, measured in Force can be negative.

Which unit is used to measure Propeller Drag due to Form Drag of Propeller with Locked Shaft?

Propeller Drag due to Form Drag of Propeller with Locked Shaft is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Propeller Drag due to Form Drag of Propeller with Locked Shaft can be measured.

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Propeller Drag due to Form Drag of Propeller with Locked Shaft Formula

Propeller Drag due to Form Drag of Propeller with Locked Shaft Example

Propeller Drag due to Form Drag of Propeller with Locked Shaft Solution

Propeller Drag due to Form Drag of Propeller with Locked Shaft Formula Elements

Other formulas in Propeller Drag category

How to Evaluate Propeller Drag due to Form Drag of Propeller with Locked Shaft?

FAQs on Propeller Drag due to Form Drag of Propeller with Locked Shaft

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