✖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.ⓘ Average Current Speed [V_c]			+10% -10%
✖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%
✖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%
✖Kinematic Viscosity in Stokes is defined as the ratio between the dynamic viscosity μ and the density ρ of the fluid.ⓘ Kinematic Viscosity in Stokes [ν^']			+10% -10%

✖Reynolds Number for Skin Friction is a dimensionless quantity used to predict flow patterns in different fluid flow situations.ⓘ Reynolds Number given Skin Friction Coefficient [Re_s]

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Formula

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Reynolds Number given Skin Friction Coefficient

Formula

`"Re"_{"s"} = ("V"_{"c"}*"l"_{"wl"}*cos("θ"_{"c"}))/"ν"^{"'"}`

Example

`"834.31"=("728.2461m/h"*"7.32m"*cos("1.150"))/"7.25St"`

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Reynolds Number given Skin Friction Coefficient Solution

STEP 0: Pre-Calculation Summary

Formula Used

Reynolds Number for Skin Friction = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity in Stokes
Re_s = (V_c*l_wl*cos(θ_c))/ν^'
This formula uses 1 Functions, 5 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

Reynolds Number for Skin Friction - Reynolds Number for Skin Friction is a dimensionless quantity used to predict flow patterns in different fluid flow situations.
Average Current Speed - (Measured in Meter per Second) - 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.
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.
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.
Kinematic Viscosity in Stokes - (Measured in Square Meter per Second) - Kinematic Viscosity in Stokes is defined as the ratio between the dynamic viscosity μ and the density ρ of the fluid.

STEP 1: Convert Input(s) to Base Unit

Average Current Speed: 728.2461 Meter per Hour --> 0.202290583333333 Meter per Second (Check conversion here)
Waterline Length of a Vessel: 7.32 Meter --> 7.32 Meter No Conversion Required
Angle of the Current: 1.15 --> No Conversion Required
Kinematic Viscosity in Stokes: 7.25 Stokes --> 0.000725 Square Meter per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Re_s = (V_c*l_wl*cos(θ_c))/ν^' --> (0.202290583333333*7.32*cos(1.15))/0.000725

Evaluating ... ...

Re_s = 834.310001337698

STEP 3: Convert Result to Output's Unit

834.310001337698 --> No Conversion Required

FINAL ANSWER

834.310001337698 ≈ 834.31 <-- Reynolds Number for Skin Friction

(Calculation completed in 00.004 seconds)

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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

Reynolds Number given Skin Friction Coefficient Formula

Reynolds Number for Skin Friction = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity in Stokes
Re_s = (V_c*l_wl*cos(θ_c))/ν^'

What causes Skin Friction?

The 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.

What is Reynolds Number?

The Reynolds Number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities. A region where these forces change behavior is known as a boundary layer, such as the bounding surface in the interior of a pipe.

How to Calculate Reynolds Number given Skin Friction Coefficient?

Reynolds Number given Skin Friction Coefficient calculator uses Reynolds Number for Skin Friction = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity in Stokes to calculate the Reynolds Number for Skin Friction, The Reynolds Number given Skin Friction Coefficient formula is defined as the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities. Reynolds Number for Skin Friction is denoted by Re_s symbol.

How to calculate Reynolds Number given Skin Friction Coefficient using this online calculator? To use this online calculator for Reynolds Number given Skin Friction Coefficient, enter Average Current Speed (V_c), Waterline Length of a Vessel (l_wl), Angle of the Current (θ_c) & Kinematic Viscosity in Stokes (ν^') and hit the calculate button. Here is how the Reynolds Number given Skin Friction Coefficient calculation can be explained with given input values -> 834.31 = (0.202290583333333*7.32*cos(1.15))/0.000725.

FAQ

What is Reynolds Number given Skin Friction Coefficient?

The Reynolds Number given Skin Friction Coefficient formula is defined as the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities and is represented as Re_s = (V_c*l_wl*cos(θ_c))/ν^' or Reynolds Number for Skin Friction = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity in Stokes. 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, Waterline Length of a Vessel is the length of a ship or boat at the level where it sits in the water, 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 & Kinematic Viscosity in Stokes is defined as the ratio between the dynamic viscosity μ and the density ρ of the fluid.

How to calculate Reynolds Number given Skin Friction Coefficient?

The Reynolds Number given Skin Friction Coefficient formula is defined as the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities is calculated using Reynolds Number for Skin Friction = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity in Stokes. To calculate Reynolds Number given Skin Friction Coefficient, you need Average Current Speed (V_c), Waterline Length of a Vessel (l_wl), Angle of the Current (θ_c) & Kinematic Viscosity in Stokes (ν^'). With our tool, you need to enter the respective value for Average Current Speed, Waterline Length of a Vessel, Angle of the Current & Kinematic Viscosity in Stokes 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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