Local Friction Coefficient given Reynolds Number Calculator

✖Local Friction Coefficient for the flow in ducts is the ratio of wall shearing stress and dynamic head of the stream.ⓘ Local Friction Coefficient given Reynolds Number [C_fx]

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Local Friction Coefficient given Reynolds Number

Formula

`"C"_{"fx"} = 0.664*"Re"_{"x"}^(-0.5)`

Example

`"0.230284"=0.664*("8.314")^(-0.5)`

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Local Friction Coefficient given Reynolds Number Solution

STEP 0: Pre-Calculation Summary

Formula Used

Local Friction Coefficient = 0.664*Reynolds Number(x)^(-0.5)
C_fx = 0.664*Re_x^(-0.5)
This formula uses 2 Variables

Variables Used

Local Friction Coefficient - Local Friction Coefficient for the flow in ducts is the ratio of wall shearing stress and dynamic head of the stream.
Reynolds Number(x) - Reynolds number(x) at a distance X from the leading edge.

STEP 1: Convert Input(s) to Base Unit

Reynolds Number(x): 8.314 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

C_fx = 0.664*Re_x^(-0.5) --> 0.664*8.314^(-0.5)

Evaluating ... ...

C_fx = 0.230283631372351

STEP 3: Convert Result to Output's Unit

0.230283631372351 --> No Conversion Required

FINAL ANSWER

0.230283631372351 ≈ 0.230284 <-- Local Friction Coefficient

(Calculation completed in 00.004 seconds)

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Home » Physics » Heat and Mass Transfer » External flow » Flow over Flat Plate » Laminar Flow » Local Friction Coefficient given Reynolds Number

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Created by Nishan Poojary

Shri Madhwa Vadiraja Institute of Technology and Management (SMVITM), Udupi

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< 15 Laminar Flow Calculators

Average temperature difference between plate and fluid

Go Average Temperature Difference = ((Heat Flux*Distance L/Thermal Conductivity))/(0.679*(Reynolds Number at Location L^0.5)*(Prandtl Number^0.333))

Free stream velocity given local friction coefficient

Go Free Stream Velocity = sqrt((2*Wall Shear Stress)/(Density*Local Friction Coefficient))

Density given local friction coefficient

Go Density = 2*Wall Shear Stress/(Local Friction Coefficient*(Free Stream Velocity^2))

Wall shear stress

Go Wall Shear Stress = (Local Friction Coefficient*Density*(Free Stream Velocity^2))/2

Local friction coefficient for external flow

Go Local Friction Coefficient = 2*Wall Shear Stress/(Density*Free Stream Velocity^2)

Hydrodynamic boundary layer thickness at distance X from leading edge

Go Hydrodynamic Boundary Layer Thickness = 5*Distance from Point to YY Axis*Reynolds Number(x)^(-0.5)

Thermal boundary layer thickness at distance X from leading edge

Go Thermal Boundary Layer Thickness = Hydrodynamic Boundary Layer Thickness*Prandtl Number^(-0.333)

Film temperature

Go Film temperature = (Plate Surface Temperature+Free Stream Fluid Temperature)/2

Free stream fluid temperature

Go Free Stream Fluid Temperature = 2*Film temperature-Plate Surface Temperature

Plate surface temperature

Go Plate Surface Temperature = 2*Film temperature-Free Stream Fluid Temperature

Coefficient of friction given Stanton number

Go Coefficient of Friction = 2*Stanton Number*(Prandtl Number^(2/3))

Displacement thickness

Go Displacement Thickness = Hydrodynamic Boundary Layer Thickness/3

Average friction coefficient

Go Average Friction Coefficient = 1.328*Reynolds Number(x)^(-0.5)

Local Friction Coefficient given Reynolds Number

Go Local Friction Coefficient = 0.664*Reynolds Number(x)^(-0.5)

Momentum thickness

Go Momentum Thickness = Hydrodynamic Boundary Layer Thickness/7

Local Friction Coefficient given Reynolds Number Formula

Local Friction Coefficient = 0.664*Reynolds Number(x)^(-0.5)
C_fx = 0.664*Re_x^(-0.5)

What is external flow

In fluid mechanics, external flow is such a flow that boundary layers develop freely, without constraints imposed by adjacent surfaces. Accordingly, there will always exist a region of the flow outside the boundary layer in which velocity, temperature, and/or concentration gradients are negligible. It can be defined as the flow of a fluid around a body that is completely submerged in it.

An example includes fluid motion over a flat plate (inclined or parallel to the free stream velocity) and flow over curved surfaces such as a sphere, cylinder, airfoil, or turbine blade, air flowing around an airplane and water flowing around the submarines.

How to Calculate Local Friction Coefficient given Reynolds Number?

Local Friction Coefficient given Reynolds Number calculator uses Local Friction Coefficient = 0.664*Reynolds Number(x)^(-0.5) to calculate the Local Friction Coefficient, The Local Friction Coefficient given Reynolds Number formula is defined as the ratio between local shear stress to characteristic dynamics pressure. Local Friction Coefficient is denoted by C_fx symbol.

How to calculate Local Friction Coefficient given Reynolds Number using this online calculator? To use this online calculator for Local Friction Coefficient given Reynolds Number, enter Reynolds Number(x) (Re_x) and hit the calculate button. Here is how the Local Friction Coefficient given Reynolds Number calculation can be explained with given input values -> 0.230284 = 0.664*8.314^(-0.5).

FAQ

What is Local Friction Coefficient given Reynolds Number?

The Local Friction Coefficient given Reynolds Number formula is defined as the ratio between local shear stress to characteristic dynamics pressure and is represented as C_fx = 0.664*Re_x^(-0.5) or Local Friction Coefficient = 0.664*Reynolds Number(x)^(-0.5). Reynolds number(x) at a distance X from the leading edge.

How to calculate Local Friction Coefficient given Reynolds Number?

The Local Friction Coefficient given Reynolds Number formula is defined as the ratio between local shear stress to characteristic dynamics pressure is calculated using Local Friction Coefficient = 0.664*Reynolds Number(x)^(-0.5). To calculate Local Friction Coefficient given Reynolds Number, you need Reynolds Number(x) (Re_x). With our tool, you need to enter the respective value for Reynolds Number(x) 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 Local Friction Coefficient?

In this formula, Local Friction Coefficient uses Reynolds Number(x). We can use 1 other way(s) to calculate the same, which is/are as follows -

Local Friction Coefficient = 2*Wall Shear Stress/(Density*Free Stream Velocity^2)

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