✖Skin Friction of a Vessel is defined as the friction at the surface of a solid and a fluid in relative motion.ⓘ Skin Friction of a Vessel [F_c,fric]			+10% -10%
✖Water Density is mass per unit volume of water.ⓘ Water Density [ρ_water]			+10% -10%
✖Wetted Surface Area is the total area of outer surface in contact with the surrounding water.ⓘ Wetted Surface Area [S]			+10% -10%
✖Average Current Speed for Skin Friction or calculating skin friction (or frictional resistance) on a vessel's hull, can vary widely depending on the type of vessel and its operational environment.ⓘ Average Current Speed for Skin Friction [V_cs]			+10% -10%
✖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.ⓘ Angle of the Current [θ_c]			+10% -10%

✖Skin Friction Coefficient refers to the dimensionless parameter that quantifies the resistance between the surface of a structure and the surrounding soil or water.ⓘ Skin Friction Coefficient given Skin Friction of Vessel [c_f]

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Formula

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Skin Friction Coefficient given Skin Friction of Vessel

Formula

`"c"_{"f"} = "F"_{"c,fric"}/(0.5*"ρ"_{"water"}*"S"*"V"_{"cs"}^2*cos("θ"_{"c"}))`

Example

`"0.760491"="42"/(0.5*"1000kg/m³"*"4m²"*("0.26m/s")^2*cos("1.150"))`

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Skin Friction Coefficient given Skin Friction of Vessel Solution

STEP 0: Pre-Calculation Summary

Formula Used

Skin Friction Coefficient = Skin Friction of a Vessel/(0.5*Water Density*Wetted Surface Area*Average Current Speed for Skin Friction^2*cos(Angle of the Current))
c_f = F_c,fric/(0.5*ρ_water*S*V_cs^2*cos(θ_c))
This formula uses 1 Functions, 6 Variables

Functions Used

cos - Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle., cos(Angle)

Variables Used

Skin Friction Coefficient - Skin Friction Coefficient refers to the dimensionless parameter that quantifies the resistance between the surface of a structure and the surrounding soil or water.
Skin Friction of a Vessel - Skin Friction of a Vessel is defined as the friction at the surface of a solid and a fluid in relative motion.
Water Density - (Measured in Kilogram per Cubic Meter) - Water Density is mass per unit volume of water.
Wetted Surface Area - (Measured in Square Meter) - Wetted Surface Area is the total area of outer surface in contact with the surrounding water.
Average Current Speed for Skin Friction - (Measured in Meter per Second) - Average Current Speed for Skin Friction or calculating skin friction (or frictional resistance) on a vessel's hull, can vary widely depending on the type of vessel and its operational environment.
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.

STEP 1: Convert Input(s) to Base Unit

Skin Friction of a Vessel: 42 --> No Conversion Required
Water Density: 1000 Kilogram per Cubic Meter --> 1000 Kilogram per Cubic Meter No Conversion Required
Wetted Surface Area: 4 Square Meter --> 4 Square Meter No Conversion Required
Average Current Speed for Skin Friction: 0.26 Meter per Second --> 0.26 Meter per Second No Conversion Required
Angle of the Current: 1.15 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

c_f = F_c,fric/(0.5*ρ_water*S*V_cs^2*cos(θ_c)) --> 42/(0.5*1000*4*0.26^2*cos(1.15))

Evaluating ... ...

c_f = 0.760490669925056

STEP 3: Convert Result to Output's Unit

0.760490669925056 --> No Conversion Required

FINAL ANSWER

0.760490669925056 ≈ 0.760491 <-- Skin Friction Coefficient

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Coastal and Ocean Engineering » Surf Zone Hydrodynamics » Harbor Hydrodynamics » Mooring » Mooring Forces » Skin Friction » Skin Friction Coefficient given Skin Friction of Vessel

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< 6 Skin Friction Calculators

Average Current Speed given Skin Friction of Vessel

Go Average Current Speed for Skin Friction = sqrt(Skin Friction of a Vessel/(0.5*Water Density*Skin Friction Coefficient*Wetted Surface Area*cos(Angle of the Current)))

Skin Friction Coefficient given Skin Friction of Vessel

Go Skin Friction Coefficient = Skin Friction of a Vessel/(0.5*Water Density*Wetted Surface Area*Average Current Speed for Skin Friction^2*cos(Angle of the Current))

Wetted Surface Area of Vessel given Skin Friction

Go Wetted Surface Area = Skin Friction of a Vessel/(0.5*Water Density*Skin Friction Coefficient*Average Current Speed for Skin Friction^2*cos(Angle of the Current))

Skin Friction of Vessel due to Flow of Water over Wetted Surface Area of Vessel

Go Skin Friction of a Vessel = 0.5*Water Density*Skin Friction Coefficient*Wetted Surface Area*Average Current Speed for Skin Friction^2*cos(Angle of the Current)

Reynolds Number given Skin Friction Coefficient

Go Reynolds Number for Skin Friction = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity in Stokes

Skin Friction Coefficient as Function of Reynolds Number

Go Skin Friction Coefficient = 0.075/(log10(Reynolds Number for Mooring Forces)-2)^2

< 25 Important Formulas of Mooring Forces Calculators

Average Current Speed for Form Drag of Vessel

Go Longshore Current Speed = sqrt(Form Drag of a Vessel/0.5*Water Density*Form Drag Coefficient*Vessel Beam*Vessel Draft*cos(Angle of the Current))

Form Drag Coefficient given Form Drag of Vessel

Go Form Drag Coefficient = Form Drag of a Vessel/(0.5*Water Density*Vessel Beam*Vessel Draft*Average Current Speed^2*cos(Angle of the Current))

Vessel Draft given Form Drag of Vessel

Go Vessel Draft = Form Drag of a Vessel/(0.5*Water Density*Form Drag Coefficient*Vessel Beam*Average Current Speed^2*cos(Angle of the Current))

Propeller Drag Coefficient given Propeller Drag

Go Propeller Drag Coefficient = Vessel Propeller Drag/(0.5*Water Density*Expanded or Developed Blade Area of a Propeller*Average Current Speed^2*cos(Angle of the Current))

Angle of Current Relative to Longitudinal Axis of Vessel given Reynolds Number

Go Angle of the Current = acos((Reynolds Number for Mooring Forces*Kinematic Viscosity in Stokes)/(Average Current Speed*Waterline Length of a Vessel))

Waterline Length of Vessel given Reynolds Number

Go Waterline Length of a Vessel = (Reynolds Number*Kinematic Viscosity in Stokes)/Average Current Speed*cos(Angle of the Current)

Average Current Speed given Reynolds Number

Go Average Current Speed = (Reynolds Number*Kinematic Viscosity in Stokes)/Waterline Length of a Vessel*cos(Angle of the Current)

Waterline Length of Vessel for Wetted Surface Area of Vessel

Go Waterline Length of a Vessel = (Wetted Surface Area of Vessel-(35*Displacement of a Vessel/Draft in Vessel))/1.7*Draft in Vessel

Displacement of Vessel for Wetted Surface Area of Vessel

Go Displacement of a Vessel = (Vessel Draft*(Wetted Surface Area of Vessel-(1.7*Vessel Draft*Waterline Length of a Vessel)))/35

Wetted Surface Area of Vessel

Go Wetted Surface Area of Vessel = (1.7*Vessel Draft*Waterline Length of a Vessel)+((35*Displacement of a Vessel)/Vessel Draft)

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

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

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

Drag Force due to Wind

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

Undamped Natural Period of Vessel

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

Waterline Length of Vessel given Expanded or Developed Blade Area

Go Waterline Length of a Vessel = (Expanded or Developed Blade Area of a Propeller*0.838*Area Ratio)/Vessel Beam

Area Ratio given Expanded or Developed Blade Area of Propeller

Go Area Ratio = Waterline Length of a Vessel*Vessel Beam/(Expanded or Developed Blade Area of a Propeller*0.838)

Expanded or Developed Blade Area of Propeller

Go Expanded or Developed Blade Area of a Propeller = (Waterline Length of a Vessel*Vessel Beam)/0.838*Area Ratio

Individual Stiffness of Mooring Line

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

Elongation in Mooring Line given Individual Stiffness of Mooring Line

Go Mooring Line Elongation = Axial Tension or Load on a Mooring Line/Individual Stiffness of a Mooring Line

Axial Tension or Load given Individual Stiffness of Mooring Line

Go Axial Tension or Load on a Mooring Line = Mooring Line Elongation*Individual Stiffness of a Mooring Line

Elongation in Mooring Line given Percent Elongation in Mooring Line

Go Elongation in the Mooring Line = Length of Mooring Line*(Percent Elongation in a Mooring Line/100)

Wind Speed at Standard Elevation of 10 m given Velocity at Desired Elevation

Go Wind Speed at Height of 10 m = Velocity at the Desired Elevation z/(Desired Elevation/10)^0.11

Velocity at Desired Elevation

Go Velocity at the Desired Elevation z = Wind Speed at Height of 10 m*(Desired Elevation/10)^0.11

Mass of Vessel given Virtual Mass of Vessel

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

Virtual Mass of Vessel

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

Skin Friction Coefficient given Skin Friction of Vessel Formula

What is Mooring Load?

The Mooring loads often govern the required lateral load capacity of a pier or berth structure. Mooring hardware and equipment are normally rated for a safe working load based upon allowable stresses and/or manufacturer's testing that should not be exceeded.

How to Calculate Skin Friction Coefficient given Skin Friction of Vessel?

Skin Friction Coefficient given Skin Friction of Vessel calculator uses Skin Friction Coefficient = Skin Friction of a Vessel/(0.5*Water Density*Wetted Surface Area*Average Current Speed for Skin Friction^2*cos(Angle of the Current)) to calculate the Skin Friction Coefficient, The Skin Friction Coefficient given Skin Friction of Vessel formula is defined as a crucial parameter that relates to the resistance experienced by a vessel or structure moving through water and important dimensionless parameter in boundary-layer flows. Skin Friction Coefficient is denoted by c_f symbol.

How to calculate Skin Friction Coefficient given Skin Friction of Vessel using this online calculator? To use this online calculator for Skin Friction Coefficient given Skin Friction of Vessel, enter Skin Friction of a Vessel (F_c,fric), Water Density (ρ_water), Wetted Surface Area (S), Average Current Speed for Skin Friction (V_cs) & Angle of the Current (θ_c) and hit the calculate button. Here is how the Skin Friction Coefficient given Skin Friction of Vessel calculation can be explained with given input values -> 0.760491 = 42/(0.5*1000*4*0.26^2*cos(1.15)).

FAQ

What is Skin Friction Coefficient given Skin Friction of Vessel?

The Skin Friction Coefficient given Skin Friction of Vessel formula is defined as a crucial parameter that relates to the resistance experienced by a vessel or structure moving through water and important dimensionless parameter in boundary-layer flows and is represented as c_f = F_c,fric/(0.5*ρ_water*S*V_cs^2*cos(θ_c)) or Skin Friction Coefficient = Skin Friction of a Vessel/(0.5*Water Density*Wetted Surface Area*Average Current Speed for Skin Friction^2*cos(Angle of the Current)). Skin Friction of a Vessel is defined as the friction at the surface of a solid and a fluid in relative motion, Water Density is mass per unit volume of water, Wetted Surface Area is the total area of outer surface in contact with the surrounding water, Average Current Speed for Skin Friction or calculating skin friction (or frictional resistance) on a vessel's hull, can vary widely depending on the type of vessel and its operational environment & 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.

How to calculate Skin Friction Coefficient given Skin Friction of Vessel?

The Skin Friction Coefficient given Skin Friction of Vessel formula is defined as a crucial parameter that relates to the resistance experienced by a vessel or structure moving through water and important dimensionless parameter in boundary-layer flows is calculated using Skin Friction Coefficient = Skin Friction of a Vessel/(0.5*Water Density*Wetted Surface Area*Average Current Speed for Skin Friction^2*cos(Angle of the Current)). To calculate Skin Friction Coefficient given Skin Friction of Vessel, you need Skin Friction of a Vessel (F_c,fric), Water Density (ρ_water), Wetted Surface Area (S), Average Current Speed for Skin Friction (V_cs) & Angle of the Current (θ_c). With our tool, you need to enter the respective value for Skin Friction of a Vessel, Water Density, Wetted Surface Area, Average Current Speed for Skin Friction & Angle of the Current and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Skin Friction Coefficient?

In this formula, Skin Friction Coefficient uses Skin Friction of a Vessel, Water Density, Wetted Surface Area, Average Current Speed for Skin Friction & Angle of the Current. We can use 1 other way(s) to calculate the same, which is/are as follows -

Skin Friction Coefficient = 0.075/(log10(Reynolds Number for Mooring Forces)-2)^2

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