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Local Drag Coefficient for Shear Stress Formula

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The Local Drag Coefficient for Boundary Layer Flow is a ratio of wall shear stress at any distance x from the leading edge to dynamic pressure. Check FAQs

CD * = \frac{𝜏}{\frac{1}{2} \cdot ρ f \cdot {V ∞}^{2}}

CD^* - Local Drag Coefficient for Boundary Layer?𝜏 - Shear Stress for Boundary Layer Flow?ρ_f - Fluid Density for Boundary Layer Flow?V_∞ - Freestream Velocity for Boundary Layer Flow?

Local Drag Coefficient for Shear Stress Example

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Here is how the Local Drag Coefficient for Shear Stress equation looks like with Values.

Here is how the Local Drag Coefficient for Shear Stress equation looks like with Units.

Here is how the Local Drag Coefficient for Shear Stress equation looks like.

0.0068 = \frac{0.068}{\frac{1}{2} \cdot 890 \cdot {0.15}^{2}}

0.0068 = \frac{0.068N/m²}{\frac{1}{2} \cdot 890kg/m³ \cdot {0.15m/s}^{2}}

0.0068 = \frac{0.068}{\frac{1}{2} \cdot 890 \cdot {0.15}^{2}}

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Local Drag Coefficient for Shear Stress Solution

Follow our step by step solution on how to calculate Local Drag Coefficient for Shear Stress?

FIRST Step Consider the formula

CD * = \frac{𝜏}{\frac{1}{2} \cdot ρ f \cdot {V ∞}^{2}}

Next Step Substitute values of Variables

∴

CD * = \frac{0.068N/m²}{\frac{1}{2} \cdot 890kg/m³ \cdot {0.15m/s}^{2}}

Next Step Convert Units

∴

CD * = \frac{0.068Pa}{\frac{1}{2} \cdot 890kg/m³ \cdot {0.15m/s}^{2}}

Next Step Prepare to Evaluate

∴

CD * = \frac{0.068}{\frac{1}{2} \cdot 890 \cdot {0.15}^{2}}

Next Step Evaluate

∴

CD * = 0.00679151061173533

LAST Step Rounding Answer

∴

CD * = 0.0068

Local Drag Coefficient for Shear Stress Formula Elements

Variables

Local Drag Coefficient for Boundary Layer

The Local Drag Coefficient for Boundary Layer Flow is a ratio of wall shear stress at any distance x from the leading edge to dynamic pressure.

Symbol: CD^*

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Local Drag Coefficient for Boundary Layer

Shear Stress for Boundary Layer Flow

Shear stress for boundary layer flow is force tending to cause deformation of the fluid by slippage along a plane or planes parallel to the imposed stress.

Symbol: 𝜏

Measurement: StressUnit: N/m²

Note: Value should be greater than 0.

Formulas to find Shear Stress for Boundary Layer Flow

Fluid Density for Boundary Layer Flow

Fluid density for boundary layer flow is defined as the mass of fluid per unit volume of the fluid.

Symbol: ρ_f

Measurement: DensityUnit: kg/m³

Note: Value should be greater than 0.

Formulas to find Fluid Density for Boundary Layer Flow

Freestream Velocity for Boundary Layer Flow

Freestream velocity for boundary layer flow is the velocity of fluid far upstream of a body, that is before the body has a chance to deflect, slow down the fluid.

Symbol: V_∞

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Freestream Velocity for Boundary Layer Flow

Other formulas in Boundary Layer Flow category

Go Reynold Number at End of Plate

R e = \frac{ρ f \cdot V ∞ \cdot L}{μ}

Go Length of Plate for Reynold Number

L = \frac{R e \cdot μ}{ρ f \cdot V ∞}

Go Velocity of Fluid for Reynold Number

V ∞ = \frac{R e \cdot μ}{ρ f \cdot L}

Go Thickness of Boundary Layer

𝛿 = \frac{5.48 \cdot x}{\sqrt{R e}}

How to Evaluate Local Drag Coefficient for Shear Stress?

Local Drag Coefficient for Shear Stress evaluator uses Local Drag Coefficient for Boundary Layer = Shear Stress for Boundary Layer Flow/(1/2*Fluid Density for Boundary Layer Flow*Freestream Velocity for Boundary Layer Flow^2) to evaluate the Local Drag Coefficient for Boundary Layer, The Local drag coefficient for shear stress is known while considering the ratio of shear stress to half the density of fluid, and freestream velocity. Local Drag Coefficient for Boundary Layer is denoted by CD^* symbol.

How to evaluate Local Drag Coefficient for Shear Stress using this online evaluator? To use this online evaluator for Local Drag Coefficient for Shear Stress, enter Shear Stress for Boundary Layer Flow (𝜏), Fluid Density for Boundary Layer Flow (ρ_f) & Freestream Velocity for Boundary Layer Flow (V_∞) and hit the calculate button.

FAQs on Local Drag Coefficient for Shear Stress

What is the formula to find Local Drag Coefficient for Shear Stress?

The formula of Local Drag Coefficient for Shear Stress is expressed as Local Drag Coefficient for Boundary Layer = Shear Stress for Boundary Layer Flow/(1/2*Fluid Density for Boundary Layer Flow*Freestream Velocity for Boundary Layer Flow^2). Here is an example- 0.006792 = 0.068/(1/2*890*0.15^2).

How to calculate Local Drag Coefficient for Shear Stress?

With Shear Stress for Boundary Layer Flow (𝜏), Fluid Density for Boundary Layer Flow (ρ_f) & Freestream Velocity for Boundary Layer Flow (V_∞) we can find Local Drag Coefficient for Shear Stress using the formula - Local Drag Coefficient for Boundary Layer = Shear Stress for Boundary Layer Flow/(1/2*Fluid Density for Boundary Layer Flow*Freestream Velocity for Boundary Layer Flow^2).

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Local Drag Coefficient for Shear Stress Formula

Local Drag Coefficient for Shear Stress Example

Local Drag Coefficient for Shear Stress Solution

Local Drag Coefficient for Shear Stress Formula Elements

Other formulas in Boundary Layer Flow category

How to Evaluate Local Drag Coefficient for Shear Stress?

FAQs on Local Drag Coefficient for Shear Stress

Variable Name