Core Exhaust Velocity given Turbofan Thrust Solution

STEP 0: Pre-Calculation Summary
Formula Used
Exit Velocity Core Nozzle = (Turbofan Thrust-Mass Flow Rate Bypass*(Exit Velocity Bypass Nozzle-Flight Speed))/Mass Flow Rate Core+Flight Speed
Vj,c = (T-b*(Vj,b-V))/mc+V
This formula uses 6 Variables
Variables Used
Exit Velocity Core Nozzle - (Measured in Meter per Second) - Exit Velocity Core Nozzle is the speed at which exhaust gases exit the primary nozzle of a turbofan engine.
Turbofan Thrust - (Measured in Newton) - Turbofan Thrust is the total thrust produced by jet core efflux and bypass air which has been accelerated by a ducted fan.
Mass Flow Rate Bypass - (Measured in Kilogram per Second) - Mass Flow Rate Bypass refers to the rate at which air bypasses the core of a turbofan engine and flows through the bypass duct.
Exit Velocity Bypass Nozzle - (Measured in Meter per Second) - Exit Velocity Bypass Nozzle is the speed at which exhaust gases exit the secondary nozzle of a turbofan exit.
Flight Speed - (Measured in Meter per Second) - Flight Speed refers to the velocity at which an aircraft travels through the air.
Mass Flow Rate Core - (Measured in Kilogram per Second) - Mass Flow Rate Core refers to the rate at which air flows through the core of a turbofan engine, specifically through the combustion chamber and the turbine.
STEP 1: Convert Input(s) to Base Unit
Turbofan Thrust: 17.8 Kilonewton --> 17800 Newton (Check conversion ​here)
Mass Flow Rate Bypass: 258 Kilogram per Second --> 258 Kilogram per Second No Conversion Required
Exit Velocity Bypass Nozzle: 250 Meter per Second --> 250 Meter per Second No Conversion Required
Flight Speed: 198 Meter per Second --> 198 Meter per Second No Conversion Required
Mass Flow Rate Core: 43 Kilogram per Second --> 43 Kilogram per Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Vj,c = (T-ṁb*(Vj,b-V))/mc+V --> (17800-258*(250-198))/43+198
Evaluating ... ...
Vj,c = 299.953488372093
STEP 3: Convert Result to Output's Unit
299.953488372093 Meter per Second --> No Conversion Required
FINAL ANSWER
299.953488372093 299.9535 Meter per Second <-- Exit Velocity Core Nozzle
(Calculation completed in 00.004 seconds)

Credits

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Created by Himanshu Sharma
National Institute of Technology, Hamirpur (NITH), Himachal Pradesh
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Turbofans Calculators

Turbofan thrust
​ LaTeX ​ Go Turbofan Thrust = Mass Flow Rate Core*(Exit Velocity Core Nozzle-Flight Speed)+Mass Flow Rate Bypass*(Exit Velocity Bypass Nozzle-Flight Speed)
Cooling Effectiveness
​ LaTeX ​ Go Cooling Effectiveness = (Temperature of Hot Gas Stream-Temperature of Metal)/(Temperature of Hot Gas Stream-Temperature of Cooling Air)
Total mass flow rate through turbofan engine
​ LaTeX ​ Go Mass Flow Rate = Mass Flow Rate Core+Mass Flow Rate Bypass
Bypass Ratio
​ LaTeX ​ Go Bypass Ratio = Mass Flow Rate Bypass/Mass Flow Rate Core

Core Exhaust Velocity given Turbofan Thrust Formula

​LaTeX ​Go
Exit Velocity Core Nozzle = (Turbofan Thrust-Mass Flow Rate Bypass*(Exit Velocity Bypass Nozzle-Flight Speed))/Mass Flow Rate Core+Flight Speed
Vj,c = (T-b*(Vj,b-V))/mc+V

What is expansion velocity?

Velocity is the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time. It shows the expansion of the Universe by showing how distant galaxies are moving away from us. Formula: v = Ho d where: v = velocity of a galaxy, in km/s.

How to Calculate Core Exhaust Velocity given Turbofan Thrust?

Core Exhaust Velocity given Turbofan Thrust calculator uses Exit Velocity Core Nozzle = (Turbofan Thrust-Mass Flow Rate Bypass*(Exit Velocity Bypass Nozzle-Flight Speed))/Mass Flow Rate Core+Flight Speed to calculate the Exit Velocity Core Nozzle, Core Exhaust Velocity given Turbofan Thrust is a measure of the velocity of gases exiting a turbofan engine, which is influenced by the thrust generated and the mass flow rate of air and fuel. This value is essential in understanding the performance and efficiency of turbofan engines. Exit Velocity Core Nozzle is denoted by Vj,c symbol.

How to calculate Core Exhaust Velocity given Turbofan Thrust using this online calculator? To use this online calculator for Core Exhaust Velocity given Turbofan Thrust, enter Turbofan Thrust (T), Mass Flow Rate Bypass (ṁb), Exit Velocity Bypass Nozzle (Vj,b), Flight Speed (V) & Mass Flow Rate Core (mc) and hit the calculate button. Here is how the Core Exhaust Velocity given Turbofan Thrust calculation can be explained with given input values -> 299.9535 = (17800-258*(250-198))/43+198.

FAQ

What is Core Exhaust Velocity given Turbofan Thrust?
Core Exhaust Velocity given Turbofan Thrust is a measure of the velocity of gases exiting a turbofan engine, which is influenced by the thrust generated and the mass flow rate of air and fuel. This value is essential in understanding the performance and efficiency of turbofan engines and is represented as Vj,c = (T-ṁb*(Vj,b-V))/mc+V or Exit Velocity Core Nozzle = (Turbofan Thrust-Mass Flow Rate Bypass*(Exit Velocity Bypass Nozzle-Flight Speed))/Mass Flow Rate Core+Flight Speed. Turbofan Thrust is the total thrust produced by jet core efflux and bypass air which has been accelerated by a ducted fan, Mass Flow Rate Bypass refers to the rate at which air bypasses the core of a turbofan engine and flows through the bypass duct, Exit Velocity Bypass Nozzle is the speed at which exhaust gases exit the secondary nozzle of a turbofan exit, Flight Speed refers to the velocity at which an aircraft travels through the air & Mass Flow Rate Core refers to the rate at which air flows through the core of a turbofan engine, specifically through the combustion chamber and the turbine.
How to calculate Core Exhaust Velocity given Turbofan Thrust?
Core Exhaust Velocity given Turbofan Thrust is a measure of the velocity of gases exiting a turbofan engine, which is influenced by the thrust generated and the mass flow rate of air and fuel. This value is essential in understanding the performance and efficiency of turbofan engines is calculated using Exit Velocity Core Nozzle = (Turbofan Thrust-Mass Flow Rate Bypass*(Exit Velocity Bypass Nozzle-Flight Speed))/Mass Flow Rate Core+Flight Speed. To calculate Core Exhaust Velocity given Turbofan Thrust, you need Turbofan Thrust (T), Mass Flow Rate Bypass (ṁb), Exit Velocity Bypass Nozzle (Vj,b), Flight Speed (V) & Mass Flow Rate Core (mc). With our tool, you need to enter the respective value for Turbofan Thrust, Mass Flow Rate Bypass, Exit Velocity Bypass Nozzle, Flight Speed & Mass Flow Rate Core 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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