## Credits

Indian Institute of Technology Kharagpur (IIT KGP), Kharagpur
Vishal Anand has created this Calculator and 10+ more calculators!
Sardar Patel College of Engineering (SPCE), Mumbai
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## Friction Velocity for airfoil Solution

STEP 0: Pre-Calculation Summary
Formula Used
Friction_Velocity_for_airfoil = (Wall Shear Stress for airfoil/Density of air)^0.5
U* = (Τw/D)^0.5
This formula uses 2 Variables
Variables Used
Wall Shear Stress for airfoil - Wall shear stress for airfoil is the shear stress in the layer of fluid next to the wall of an airfoil. (Measured in Newton per Square Meter)
Density of air - Density of air taken at standard conditions. (Measured in Kilogram per Meter³)
STEP 1: Convert Input(s) to Base Unit
Wall Shear Stress for airfoil: 1 Newton per Square Meter --> 1 Pascal (Check conversion here)
Density of air: 2 Kilogram per Meter³ --> 2 Kilogram per Meter³ No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
U* = (Τw/D)^0.5 --> (1/2)^0.5
Evaluating ... ...
U* = 0.707106781186548
STEP 3: Convert Result to Output's Unit
0.707106781186548 Meter per Second --> No Conversion Required
0.707106781186548 Meter per Second <-- Friction Velocity for airfoil
(Calculation completed in 00.016 seconds)

## < 7 CFD Calculators

Lift on airfoil
Lift_on_airfoil = Normal Force on airfoil*cos(Angle of Attack of airfoil)-Axial Force on airfoil*sin(Angle of Attack of airfoil) Go
Drag on airfoil
Drag_on_airfoil = Normal Force on airfoil*sin(Angle of Attack of airfoil)+Axial Force on airfoil*cos(Angle of Attack of airfoil) Go
Reynolds Number for airfoil
reynolds_number = (Density of fluid*Flow Velocity*Chord Length of Airfoil)/Dynamic viscosity Go
Y plus
Y_plus = First layer height*Density of air*Friction Velocity for airfoil/Kinematic viscosity Go
Wall Shear Stress for airfoil
wall_shear_stress = 0.5*Skin friction coefficient*Flow Velocity*Density of air Go
Friction Velocity for airfoil
Friction_Velocity_for_airfoil = (Wall Shear Stress for airfoil/Density of air)^0.5 Go
Skin friction coefficient
skin_friction_coefficient = (2*log10(Reynolds Number)-0.65)^(-2.30) Go

### Friction Velocity for airfoil Formula

Friction_Velocity_for_airfoil = (Wall Shear Stress for airfoil/Density of air)^0.5
U* = (Τw/D)^0.5

## How to Calculate Friction Velocity for airfoil?

Friction Velocity for airfoil calculator uses Friction_Velocity_for_airfoil = (Wall Shear Stress for airfoil/Density of air)^0.5 to calculate the Friction Velocity for airfoil, the friction velocity for airfoil characterizes the shear at the boundary. Friction Velocity for airfoil is denoted by U* symbol.

How to calculate Friction Velocity for airfoil using this online calculator? To use this online calculator for Friction Velocity for airfoil, enter Wall Shear Stress for airfoil w) & Density of air (D) and hit the calculate button. Here is how the Friction Velocity for airfoil calculation can be explained with given input values -> 0.707107 = (1/2)^0.5.

### FAQ

What is Friction Velocity for airfoil?
the friction velocity for airfoil characterizes the shear at the boundary and is represented as U* = (Τw/D)^0.5 or Friction_Velocity_for_airfoil = (Wall Shear Stress for airfoil/Density of air)^0.5. Wall shear stress for airfoil is the shear stress in the layer of fluid next to the wall of an airfoil & Density of air taken at standard conditions.
How to calculate Friction Velocity for airfoil?
the friction velocity for airfoil characterizes the shear at the boundary is calculated using Friction_Velocity_for_airfoil = (Wall Shear Stress for airfoil/Density of air)^0.5. To calculate Friction Velocity for airfoil, you need Wall Shear Stress for airfoil w) & Density of air (D). With our tool, you need to enter the respective value for Wall Shear Stress for airfoil & Density of air 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 Friction Velocity for airfoil?
In this formula, Friction Velocity for airfoil uses Wall Shear Stress for airfoil & Density of air. We can use 7 other way(s) to calculate the same, which is/are as follows -
• reynolds_number = (Density of fluid*Flow Velocity*Chord Length of Airfoil)/Dynamic viscosity
• skin_friction_coefficient = (2*log10(Reynolds Number)-0.65)^(-2.30)
• wall_shear_stress = 0.5*Skin friction coefficient*Flow Velocity*Density of air
• Friction_Velocity_for_airfoil = (Wall Shear Stress for airfoil/Density of air)^0.5
• Y_plus = First layer height*Density of air*Friction Velocity for airfoil/Kinematic viscosity
• Lift_on_airfoil = Normal Force on airfoil*cos(Angle of Attack of airfoil)-Axial Force on airfoil*sin(Angle of Attack of airfoil)
• Drag_on_airfoil = Normal Force on airfoil*sin(Angle of Attack of airfoil)+Axial Force on airfoil*cos(Angle of Attack of airfoil) Let Others Know