Skin Friction Coefficient as Function of Reynolds Number Calculator

✖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 [Re]

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✖Skin friction coefficient is an important dimensionless parameter in boundary-layer flows. It specifies the fraction of the local dynamic pressure.ⓘ Skin Friction Coefficient as Function of Reynolds Number [c_f]

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Formula

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Skin Friction Coefficient as Function of Reynolds Number

Formula

`"c"_{"f"} = 0.075/(log10("Re")-2)^2`

Example

`"0.82764"=0.075/(log10("200")-2)^2`

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Skin Friction Coefficient as Function of Reynolds Number Solution

STEP 0: Pre-Calculation Summary

Formula Used

Skin friction coefficient = 0.075/(log10(Reynolds Number)-2)^2
c_f = 0.075/(log10(Re)-2)^2
This formula uses 1 Functions, 2 Variables

Functions Used

log10 - The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function., log10(Number)

Variables Used

Skin friction coefficient - Skin friction coefficient is an important dimensionless parameter in boundary-layer flows. It specifies the fraction of the local dynamic pressure.
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.

STEP 1: Convert Input(s) to Base Unit

Reynolds Number: 200 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

c_f = 0.075/(log10(Re)-2)^2 --> 0.075/(log10(200)-2)^2

Evaluating ... ...

c_f = 0.827640470070148

STEP 3: Convert Result to Output's Unit

0.827640470070148 --> No Conversion Required

FINAL ANSWER

0.827640470070148 ≈ 0.82764 <-- Skin friction coefficient

(Calculation completed in 00.004 seconds)

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Coorg Institute of Technology (CIT), Coorg

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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

Skin Friction Coefficient as Function of Reynolds Number Formula

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

What is Skin Friction?

Skin Friction is the wall shear stress defined as the derivative of the velocity multiplying the dynamic viscosity in the wall-normal direction at a solid surface, which is a major contributor to the fluid-mechanic drag.

What causes skin friction?

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.

How to Calculate Skin Friction Coefficient as Function of Reynolds Number?

Skin Friction Coefficient as Function of Reynolds Number calculator uses Skin friction coefficient = 0.075/(log10(Reynolds Number)-2)^2 to calculate the Skin friction coefficient, The Skin Friction Coefficient as Function of Reynolds Number is an important dimensionless parameter in boundary-layer flows. Skin friction coefficient is denoted by c_f symbol.

How to calculate Skin Friction Coefficient as Function of Reynolds Number using this online calculator? To use this online calculator for Skin Friction Coefficient as Function of Reynolds Number, enter Reynolds Number (Re) and hit the calculate button. Here is how the Skin Friction Coefficient as Function of Reynolds Number calculation can be explained with given input values -> 0.82764 = 0.075/(log10(200)-2)^2.

FAQ

What is Skin Friction Coefficient as Function of Reynolds Number?

The Skin Friction Coefficient as Function of Reynolds Number is an important dimensionless parameter in boundary-layer flows and is represented as c_f = 0.075/(log10(Re)-2)^2 or Skin friction coefficient = 0.075/(log10(Reynolds Number)-2)^2. 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.

How to calculate Skin Friction Coefficient as Function of Reynolds Number?

The Skin Friction Coefficient as Function of Reynolds Number is an important dimensionless parameter in boundary-layer flows is calculated using Skin friction coefficient = 0.075/(log10(Reynolds Number)-2)^2. To calculate Skin Friction Coefficient as Function of Reynolds Number, you need Reynolds Number (Re). With our tool, you need to enter the respective value for Reynolds Number 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 Reynolds Number. We can use 1 other way(s) to calculate the same, which is/are as follows -

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))

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