Skin Friction Coefficient for Incompressible Flow 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 for Incompressible Flow [c_f]

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Formula

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Skin Friction Coefficient for Incompressible Flow

Formula

`"c"_{"f"} = 0.664/sqrt("Re")`

Example

`"0.00939"=0.664/sqrt("5000")`

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Download Boundary Layer Equations for Hypersonic Flow Formulas PDF

Skin Friction Coefficient for Incompressible Flow Solution

STEP 0: Pre-Calculation Summary

Formula Used

Skin friction coefficient = 0.664/sqrt(Reynolds Number)
c_f = 0.664/sqrt(Re)
This formula uses 1 Functions, 2 Variables

Functions Used

sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(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: 5000 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

c_f = 0.664/sqrt(Re) --> 0.664/sqrt(5000)

Evaluating ... ...

c_f = 0.00939037805415735

STEP 3: Convert Result to Output's Unit

0.00939037805415735 --> No Conversion Required

FINAL ANSWER

0.00939037805415735 ≈ 0.00939 <-- Skin friction coefficient

(Calculation completed in 00.004 seconds)

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Home » Engineering » Mechanical » Fluid Mechanics » Hypersonic Flow » Boundary Layer Equations for Hypersonic Flow » Hypersonic Flow Parameters » Skin Friction Coefficient for Incompressible Flow

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Created by Sanjay Krishna

Amrita School of Engineering (ASE), Vallikavu

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Verified by Shikha Maurya

Indian Institute of Technology (IIT), Bombay

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< 7 Hypersonic Flow Parameters Calculators

Static Velocity Equation using Skin Friction Coefficient

Go Static Velocity = sqrt((2*Shear Stress)/(Local Skin-Friction Coefficient*Static Density))

Static Viscosity Relation using Temperature of Wall

Go Static Viscosity = Dynamic Viscosity/(Wall Temperature/Static Temperature)^(Constant n)

Dynamic Viscosity around Wall

Go Dynamic Viscosity = Static Viscosity*(Wall Temperature/Static Temperature)^(Constant n)

Static Density Equation using Skin Friction Coefficient

Go Static Density = (2*Shear Stress)/(Local Skin-Friction Coefficient*Static Velocity^2)

Local Skin-Friction Coefficient

Go Local Skin-Friction Coefficient = (2*Shear Stress)/(Static Density*Static Velocity^2)

Local Shear Stress at Wall

Go Shear Stress = 0.5*Local Skin-Friction Coefficient*Static Density*Static Viscosity^2

Skin Friction Coefficient for Incompressible Flow

Go Skin friction coefficient = 0.664/sqrt(Reynolds Number)

Skin Friction Coefficient for Incompressible Flow Formula

Skin friction coefficient = 0.664/sqrt(Reynolds Number)
c_f = 0.664/sqrt(Re)

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

How to Calculate Skin Friction Coefficient for Incompressible Flow?

Skin Friction Coefficient for Incompressible Flow calculator uses Skin friction coefficient = 0.664/sqrt(Reynolds Number) to calculate the Skin friction coefficient, Skin friction coefficient for incompressible flow formula is defined as the ratio of a constant to the square root of Reynold number. Skin friction coefficient is denoted by c_f symbol.

How to calculate Skin Friction Coefficient for Incompressible Flow using this online calculator? To use this online calculator for Skin Friction Coefficient for Incompressible Flow, enter Reynolds Number (Re) and hit the calculate button. Here is how the Skin Friction Coefficient for Incompressible Flow calculation can be explained with given input values -> 0.00939 = 0.664/sqrt(5000).

FAQ

What is Skin Friction Coefficient for Incompressible Flow?

Skin friction coefficient for incompressible flow formula is defined as the ratio of a constant to the square root of Reynold number and is represented as c_f = 0.664/sqrt(Re) or Skin friction coefficient = 0.664/sqrt(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.

How to calculate Skin Friction Coefficient for Incompressible Flow?

Skin friction coefficient for incompressible flow formula is defined as the ratio of a constant to the square root of Reynold number is calculated using Skin friction coefficient = 0.664/sqrt(Reynolds Number). To calculate Skin Friction Coefficient for Incompressible Flow, 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.

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