Reynolds Number given Skin Friction Coefficient Calculator

✖The Average Current Speed [length/time] defined as the speed of Ocean currents that are continuous, predictable, directional movement of seawater.ⓘ Average Current Speed [V_c]			+10% -10%
✖Waterline Length of a Vessel [length] 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 Relative to the Longitudinal Axis of the Vessel.ⓘ Angle of the Current [θ_c]			+10% -10%
✖The kinematic Viscosity is an atmospheric variable defined as the ratio between the dynamic viscosity μ and the density ρ of the fluid.ⓘ Kinematic Viscosity [v]			+10% -10%

✖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.ⓘ Reynolds Number given Skin Friction Coefficient [Re]

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Reynolds Number given Skin Friction Coefficient

Formula

`"Re" = ("V"_{"c"}*"l"_{"wl"}*cos("θ"_{"c"}))/"v"`

Example

`"2.082203"=("0.26m/s"*"7.32m"*cos("20"))/"0.373m²/s"`

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Reynolds Number given Skin Friction Coefficient Solution

STEP 0: Pre-Calculation Summary

Formula Used

Reynolds Number = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity
Re = (V_c*l_wl*cos(θ_c))/v
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 - 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.
Average Current Speed - (Measured in Meter per Second) - The Average Current Speed [length/time] defined as the speed of Ocean currents that are continuous, predictable, directional movement of seawater.
Waterline Length of a Vessel - (Measured in Meter) - Waterline Length of a Vessel [length] 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 Relative to the Longitudinal Axis of the Vessel.
Kinematic Viscosity - (Measured in Square Meter per Second) - The kinematic Viscosity is an atmospheric variable 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: 0.26 Meter per Second --> 0.26 Meter per Second No Conversion Required
Waterline Length of a Vessel: 7.32 Meter --> 7.32 Meter No Conversion Required
Angle of the Current: 20 --> No Conversion Required
Kinematic Viscosity: 0.373 Square Meter per Second --> 0.373 Square Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Re = (V_c*l_wl*cos(θ_c))/v --> (0.26*7.32*cos(20))/0.373

Evaluating ... ...

Re = 2.08220316365482

STEP 3: Convert Result to Output's Unit

2.08220316365482 --> No Conversion Required

FINAL ANSWER

2.08220316365482 ≈ 2.082203 <-- Reynolds Number

(Calculation completed in 00.020 seconds)

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< 6 Skin Friction Calculators

Average Current Speed given Skin Friction of Vessel

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

Reynolds Number given Skin Friction Coefficient

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

Skin Friction Coefficient as Function of Reynolds Number

Go Skin friction coefficient = 0.075/(log10(Reynolds Number)-2)^2

Reynolds Number given Skin Friction Coefficient Formula

Reynolds Number = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity
Re = (V_c*l_wl*cos(θ_c))/v

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 = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity to calculate the Reynolds Number, The Reynolds Number given Skin Friction Coefficient is 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 is denoted by Re 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 (v) and hit the calculate button. Here is how the Reynolds Number given Skin Friction Coefficient calculation can be explained with given input values -> 200.2118 = (0.26*7.32*cos(20))/0.373.

FAQ

What is Reynolds Number given Skin Friction Coefficient?

The Reynolds Number given Skin Friction Coefficient is 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 = (V_c*l_wl*cos(θ_c))/v or Reynolds Number = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity. The Average Current Speed [length/time] defined as the speed of Ocean currents that are continuous, predictable, directional movement of seawater, Waterline Length of a Vessel [length] is the length of a ship or boat at the level where it sits in the water, Angle of the Current Relative to the Longitudinal Axis of the Vessel & The kinematic Viscosity is an atmospheric variable 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 is 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 = (Average Current Speed*Waterline Length of a Vessel*cos(Angle of the Current))/Kinematic Viscosity. 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 (v). 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 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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