Local Skin-Friction Coefficient Solution

STEP 0: Pre-Calculation Summary
Formula Used
Local Skin-Friction Coefficient = (2*Shear Stress)/(Static Density*Static Velocity^2)
Cf = (2*𝜏)/(ρe*ue^2)
This formula uses 4 Variables
Variables Used
Local Skin-Friction Coefficient - Local Skin-Friction Coefficient specifies the fraction of the local dynamic pressure.
Shear Stress - (Measured in Pascal) - Shear Stress is force tending to cause deformation of a material by slippage along a plane or planes parallel to the imposed stress.
Static Density - (Measured in Kilogram per Cubic Meter) - Static density, is the density of the fluid when its not moving, or the density of fluid if we are moving relative to the fluid.
Static Velocity - (Measured in Meter per Second) - Static velocity is the velocity of fluid at a point in the fluid, or velocity in the continuous flow.
STEP 1: Convert Input(s) to Base Unit
Shear Stress: 61 Pascal --> 61 Pascal No Conversion Required
Static Density: 1200 Kilogram per Cubic Meter --> 1200 Kilogram per Cubic Meter No Conversion Required
Static Velocity: 8.8 Meter per Second --> 8.8 Meter per Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Cf = (2*𝜏)/(ρe*ue^2) --> (2*61)/(1200*8.8^2)
Evaluating ... ...
Cf = 0.00131284435261708
STEP 3: Convert Result to Output's Unit
0.00131284435261708 --> No Conversion Required
FINAL ANSWER
0.00131284435261708 0.001313 <-- Local Skin-Friction Coefficient
(Calculation completed in 00.004 seconds)

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Created by Sanjay Krishna
Amrita School of Engineering (ASE), Vallikavu
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Indian Institute for Aeronautical Engineering and Information Technology (IIAEIT), Pune
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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 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

Local Skin-Friction Coefficient Formula

​Go
Local Skin-Friction Coefficient = (2*Shear Stress)/(Static Density*Static Velocity^2)
Cf = (2*𝜏)/(ρe*ue^2)

What is skin friction coefficient?

The skin friction coefficient is an important dimensionless parameter in boundary-layer flows. It specifies the fraction of the local dynamic pressure((0.5)* ρ* U^ 2 ) that is felt as shear stress on the surface

How to Calculate Local Skin-Friction Coefficient?

Local Skin-Friction Coefficient calculator uses Local Skin-Friction Coefficient = (2*Shear Stress)/(Static Density*Static Velocity^2) to calculate the Local Skin-Friction Coefficient, Local Skin-Friction Coefficient formula is defined as a dimensionless quantity that characterizes the frictional force exerted by a fluid on a surface, specifically in the context of boundary layer equations for hypersonic flow, providing a crucial parameter for understanding and predicting fluid dynamics in high-speed flow regimes. Local Skin-Friction Coefficient is denoted by Cf symbol.

How to calculate Local Skin-Friction Coefficient using this online calculator? To use this online calculator for Local Skin-Friction Coefficient, enter Shear Stress (𝜏), Static Density e) & Static Velocity (ue) and hit the calculate button. Here is how the Local Skin-Friction Coefficient calculation can be explained with given input values -> 0.001313 = (2*61)/(1200*8.8^2).

FAQ

What is Local Skin-Friction Coefficient?
Local Skin-Friction Coefficient formula is defined as a dimensionless quantity that characterizes the frictional force exerted by a fluid on a surface, specifically in the context of boundary layer equations for hypersonic flow, providing a crucial parameter for understanding and predicting fluid dynamics in high-speed flow regimes and is represented as Cf = (2*𝜏)/(ρe*ue^2) or Local Skin-Friction Coefficient = (2*Shear Stress)/(Static Density*Static Velocity^2). Shear Stress is force tending to cause deformation of a material by slippage along a plane or planes parallel to the imposed stress, Static density, is the density of the fluid when its not moving, or the density of fluid if we are moving relative to the fluid & Static velocity is the velocity of fluid at a point in the fluid, or velocity in the continuous flow.
How to calculate Local Skin-Friction Coefficient?
Local Skin-Friction Coefficient formula is defined as a dimensionless quantity that characterizes the frictional force exerted by a fluid on a surface, specifically in the context of boundary layer equations for hypersonic flow, providing a crucial parameter for understanding and predicting fluid dynamics in high-speed flow regimes is calculated using Local Skin-Friction Coefficient = (2*Shear Stress)/(Static Density*Static Velocity^2). To calculate Local Skin-Friction Coefficient, you need Shear Stress (𝜏), Static Density e) & Static Velocity (ue). With our tool, you need to enter the respective value for Shear Stress, Static Density & Static Velocity 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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