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Propulsive Efficiency given Effective Speed Ratio Formula

GoPropulsive efficiency Formula

GoPropulsive efficiency given aircraft velocity Formula

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Propulsive efficiency is the efficiency with which the energy contained in a fuel is converted into kinetic energy of the vehicle. Check FAQs

η propulsive = \frac{2 \cdot α}{1 + α}

η_propulsive - Propulsive Efficiency?α - Effective Speed Ratio?

Propulsive Efficiency given Effective Speed Ratio Example

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Here is how the Propulsive Efficiency given Effective Speed Ratio equation looks like with Values.

Here is how the Propulsive Efficiency given Effective Speed Ratio equation looks like with Units.

Here is how the Propulsive Efficiency given Effective Speed Ratio equation looks like.

0.6183 = \frac{2 \cdot 0.4475}{1 + 0.4475}

0.6183 = \frac{2 \cdot 0.4475}{1 + 0.4475}

0.6183 = \frac{2 \cdot 0.4475}{1 + 0.4475}

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Propulsive Efficiency given Effective Speed Ratio Solution

Follow our step by step solution on how to calculate Propulsive Efficiency given Effective Speed Ratio?

FIRST Step Consider the formula

η propulsive = \frac{2 \cdot α}{1 + α}

Next Step Substitute values of Variables

∴

η propulsive = \frac{2 \cdot 0.4475}{1 + 0.4475}

Next Step Prepare to Evaluate

∴

η propulsive = \frac{2 \cdot 0.4475}{1 + 0.4475}

Next Step Evaluate

∴

η propulsive = 0.618307426597582

LAST Step Rounding Answer

∴

η propulsive = 0.6183

Propulsive Efficiency given Effective Speed Ratio Formula Elements

Variables

Propulsive Efficiency

Propulsive efficiency is the efficiency with which the energy contained in a fuel is converted into kinetic energy of the vehicle.

Symbol: η_propulsive

Measurement: NAUnit: Unitless

Note: Value should be between 0 to 1.

Formulas to find Propulsive Efficiency

Effective Speed Ratio

Effective Speed Ratio is the ratio of aircraft forward speed to the aircraft jet velocity.

Symbol: α

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Effective Speed Ratio

Other Formulas to find Propulsive Efficiency

Go Propulsive efficiency

η propulsive = \frac{T P}{P}

Go Propulsive efficiency given aircraft velocity

η propulsive = \frac{2 \cdot V}{V e + V}

Other formulas in Efficiency Metrics category

Go Isentropic Efficiency of Expansion Machine

η T = \frac{W actual}{W s,out}

Go Net work output in simple gas turbine cycle

W Net = C p \cdot ((T 3 - T 4) - (T 2 - T 1))

Go Propulsive power

P = \frac{1}{2} \cdot ((m a + m f) \cdot {V e}^{2} - (m a \cdot V^{2}))

Go Thermal Efficiency of Jet Engines given Effective Speed Ratio

η th = \frac{{V e}^{2} \cdot (1 - α^{2})}{2 \cdot f \cdot Q}

How to Evaluate Propulsive Efficiency given Effective Speed Ratio?

Propulsive Efficiency given Effective Speed Ratio evaluator uses Propulsive Efficiency = (2*Effective Speed Ratio)/(1+Effective Speed Ratio) to evaluate the Propulsive Efficiency, Propulsive Efficiency given Effective Speed Ratio is a measure of the effectiveness of a propeller or a rotor in converting the engine's power into useful thrust, taking into account the speed at which the propeller or rotor operates and the speed of the surrounding fluid. Propulsive Efficiency is denoted by η_propulsive symbol.

How to evaluate Propulsive Efficiency given Effective Speed Ratio using this online evaluator? To use this online evaluator for Propulsive Efficiency given Effective Speed Ratio, enter Effective Speed Ratio (α) and hit the calculate button.

FAQs on Propulsive Efficiency given Effective Speed Ratio

What is the formula to find Propulsive Efficiency given Effective Speed Ratio?

The formula of Propulsive Efficiency given Effective Speed Ratio is expressed as Propulsive Efficiency = (2*Effective Speed Ratio)/(1+Effective Speed Ratio). Here is an example- 0.618307 = (2*0.4475)/(1+0.4475).

How to calculate Propulsive Efficiency given Effective Speed Ratio?

With Effective Speed Ratio (α) we can find Propulsive Efficiency given Effective Speed Ratio using the formula - Propulsive Efficiency = (2*Effective Speed Ratio)/(1+Effective Speed Ratio).

What are the other ways to Calculate Propulsive Efficiency?

Here are the different ways to Calculate Propulsive Efficiency-

Propulsive Efficiency=Thrust Power/Propulsive Power
Propulsive Efficiency=(2*Flight Speed)/(Exit Velocity+Flight Speed)

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