Propulsive efficiency given aircraft velocity Solution

STEP 0: Pre-Calculation Summary
Formula Used
Propulsive Efficiency = (2*Flight Speed)/(Exit Velocity+Flight Speed)
ηpropulsive = (2*V)/(Ve+V)
This formula uses 3 Variables
Variables Used
Propulsive Efficiency - Propulsive efficiency is the efficiency with which the energy contained in a fuel is converted into kinetic energy of the vehicle.
Flight Speed - (Measured in Meter per Second) - Flight Speed refers to the velocity at which an aircraft moves through the air.
Exit Velocity - (Measured in Meter per Second) - Exit Velocity refers to the speed at which gases expand at the exit of nozzle of a engine.
STEP 1: Convert Input(s) to Base Unit
Flight Speed: 111 Meter per Second --> 111 Meter per Second No Conversion Required
Exit Velocity: 248 Meter per Second --> 248 Meter per Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
ηpropulsive = (2*V)/(Ve+V) --> (2*111)/(248+111)
Evaluating ... ...
ηpropulsive = 0.618384401114206
STEP 3: Convert Result to Output's Unit
0.618384401114206 --> No Conversion Required
FINAL ANSWER
0.618384401114206 0.618384 <-- Propulsive Efficiency
(Calculation completed in 00.004 seconds)

Credits

Created by Chilvera Bhanu Teja
Institute of Aeronautical Engineering (IARE), Hyderabad
Chilvera Bhanu Teja has created this Calculator and 300+ more calculators!
Verified by Vaibhav Malani
National Institute of Technology (NIT), Tiruchirapalli
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12 Efficiency Metrics Calculators

Net work output in simple gas turbine cycle
Go Net Work Output = Specific Heat Capacity at Constant Pressure*((Temperature at Inlet of Turbine-Temperature at Exit of Turbine)-(Temperature at Exit of Compressor-Temperature at Inlet of Compressor))
Change in Kinetic Energy of Jet Engine
Go Change in Kinetic Energy = (((Mass Flow Rate+Fuel Flow Rate)*Exit Velocity^2)-(Mass Flow Rate*Flight Speed^2 ))/2
Propulsive power
Go Propulsive Power = 1/2*((Mass Flow Rate+Fuel Flow Rate)*Exit Velocity^2-(Mass Flow Rate*Flight Speed^2))
Thermal Efficiency of Jet Engines given Effective Speed Ratio
Go Thermal Efficiency = (Exit Velocity^2*(1-Effective Speed Ratio^2))/(2*Fuel Air Ratio*Fuel Calorific Value)
Overall Efficiency given Specific Fuel Consumption
Go Overall Efficiency = Flight Speed/(Thrust-Specific Fuel Consumption*Fuel Calorific Value)
Overall Efficiency of Propulsive System
Go Overall Efficiency = Thermal Efficiency*Efficiency of Transmission*Propulsive Efficiency
Propulsive efficiency given aircraft velocity
Go Propulsive Efficiency = (2*Flight Speed)/(Exit Velocity+Flight Speed)
Transmission Efficiency given Output and Input of Transmission
Go Efficiency of Transmission = Transmission Output Power/Transmission Input Power
Propulsive Efficiency given Effective Speed Ratio
Go Propulsive Efficiency = (2*Effective Speed Ratio)/(1+Effective Speed Ratio)
Isentropic Efficiency of Expansion Machine
Go Turbine Efficiency = Actual Work/Isentropic Work Output
Propulsive efficiency
Go Propulsive Efficiency = Thrust Power/Propulsive Power
Effective speed ratio
Go Effective Speed Ratio = Flight Speed/Exit Velocity

Propulsive efficiency given aircraft velocity Formula

Propulsive Efficiency = (2*Flight Speed)/(Exit Velocity+Flight Speed)
ηpropulsive = (2*V)/(Ve+V)

What is propulsive efficiency?

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

How to Calculate Propulsive efficiency given aircraft velocity?

Propulsive efficiency given aircraft velocity calculator uses Propulsive Efficiency = (2*Flight Speed)/(Exit Velocity+Flight Speed) to calculate the Propulsive Efficiency, The Propulsive efficiency given aircraft velocity formula is defined as the propulsive power delivered to the aircraft (which is equal to thrust times airspeed) divided by the shaft power input to the propulsor. Propulsive Efficiency is denoted by ηpropulsive symbol.

How to calculate Propulsive efficiency given aircraft velocity using this online calculator? To use this online calculator for Propulsive efficiency given aircraft velocity, enter Flight Speed (V) & Exit Velocity (Ve) and hit the calculate button. Here is how the Propulsive efficiency given aircraft velocity calculation can be explained with given input values -> 0.618384 = (2*111)/(248+111).

FAQ

What is Propulsive efficiency given aircraft velocity?
The Propulsive efficiency given aircraft velocity formula is defined as the propulsive power delivered to the aircraft (which is equal to thrust times airspeed) divided by the shaft power input to the propulsor and is represented as ηpropulsive = (2*V)/(Ve+V) or Propulsive Efficiency = (2*Flight Speed)/(Exit Velocity+Flight Speed). Flight Speed refers to the velocity at which an aircraft moves through the air & Exit Velocity refers to the speed at which gases expand at the exit of nozzle of a engine.
How to calculate Propulsive efficiency given aircraft velocity?
The Propulsive efficiency given aircraft velocity formula is defined as the propulsive power delivered to the aircraft (which is equal to thrust times airspeed) divided by the shaft power input to the propulsor is calculated using Propulsive Efficiency = (2*Flight Speed)/(Exit Velocity+Flight Speed). To calculate Propulsive efficiency given aircraft velocity, you need Flight Speed (V) & Exit Velocity (Ve). With our tool, you need to enter the respective value for Flight Speed & Exit Velocity 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 Propulsive Efficiency?
In this formula, Propulsive Efficiency uses Flight Speed & Exit Velocity. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Propulsive Efficiency = Thrust Power/Propulsive Power
  • Propulsive Efficiency = (2*Effective Speed Ratio)/(1+Effective Speed Ratio)
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