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Reynolds Number given Skin Friction Coefficient Calculator

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Skin Friction Form Drag Propeller Drag

✖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 = \frac{V c \cdot l wl \cdot \cos (θ c)}{ν'}

Example

834.31 = \frac{728.2461 m/h \cdot 7.32 m \cdot \cos (1.150)}{7.25 St}

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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 00.006 seconds)

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< 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)

< Important Formulas of Mooring Forces Calculators

Undamped Natural Period of Vessel

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

Individual Stiffness of Mooring Line

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

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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