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The thrust of a Jet engine is calculated through the formula:
F=(m_air+m_fuel)*v_e - m_air*v
Where m_air is the mass flow rate of air entering into the engine
m_fuel is the mass flow rate of fuel entering the combustion chamber
v_e is the exit velocity of the exhaust gases (where v_e needs to be subsonic)
v is the velocity of air entering the engine
As you can see the thrust is reduced by the term m_air*v which physically has the significance of a drag at the intake of the engine. That's why rocket engine give usually a better thrust. Since they carry the oxidizer on-board that term doesn't exist for a rocket engine. I will let you think about the parameters you can play with to design an engine with as highest thrust as possible for a given (fixed fuel consumption). hint:v_e is influenced by things like combustion temperature, combustion pressure etc... Hope this helps!
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What is the force that moves a plane forward?
Thrust. The pull of the propellers, the push of the jet engine, the pull of gravity.
What is the Jet Engine's purpose?
The Jet engines purpose is to create thrust.With out Thrust a plane would not be able to fly.
What is gross thrust in a turbine engine verses net thrust?
Hi there, Gross thrust is the reaction of the momentum of the jet stream produced in a gas turbine engine.If you don't know net thrust,let me tell you.Net thrust is the resultant force acting on the aircraft.Net thrust=Gross thrust-Momentum(Intake)Drag.Don't go deep in momentum drag.When the aircraft with turbine engine,is moving...Gross Thrust is more than net thrust.and when the engine is at the rest,gross thrust=net thrust.Hope you got the answer.....Good luck in your future. Hi there, Gross thrust is the reaction of the momentum of the jet stream produced in a gas turbine engine.If you don't know net thrust,let me tell you.Net thrust is the resultant force acting on the aircraft.Net thrust=Gross thrust-Momentum(Intake)Drag.Don't go deep in momentum drag.When the aircraft with turbine engine,is moving...Gross Thrust is more than net thrust.and when the engine is at the rest,gross thrust=net thrust.Hope you got the answer.....Good luck in your future. Gross thrust, means the thrust when there is not forward momentum of the jet. However, the jet has always the forward speed. When we consider this, we can calculate the net thrust as the gross thrust minus the forward momentum.
How does a jet engine create thrust?
There are a few different jet engines, but it basically needs bleed air and fuel. Air enters the engine where it is compressed and mixed with fuel. Next, the air/fuel is heated in a combustion chamber, then it is unleashed through the turbine as thrust.
How are horsepower and thrust related in a jet aircraft?
The more horsepower you have, the more thrust you will be able to produce. The more horsepower you have, the more thrust you will be able to produce.
How do jet engines provide a forward thrust to for an airplane?
The thrust is given by the difference in the velocity of air coming into the jet engine and going out of the jet engine, Thrust = F= mdV/dt = ma.
What is thrust in an aircraft?
Thrust is the power made by a jet engine to propel an aircraft.
How thrust is increased in jet engine?
AfterburnersWater Injection
How does the jet on a jet plane makes the plane move?
The exhaust gases from combustion create thrust which pushed the plane in the other direction
What is the difference between a jet plane and a propeller?
A jet plane uses a jet engine's thrust for propulsion. A propeller is a set of blades somewhat like a big fan that blows air to the back of the plane for thrust instead of using a jet engine for the thrust to move the plane forward.
What is the total trust in gas turbin engine?
You must mean 'Thrust' . The thrust is the amount of power the jet engine supplies.
How does an airplane get its thrust?
An aircraft gets thrust from an engine, either a piston engine driving a propeller or a jet driving a turbine.
What does the engine on an airplane do?
They propel the aircraft by propellers or jet thrust.
How do airplanes generate thrust?
With an engine--either prop or jet.
Can you rev a jet engine without producing thrust?
No. Propeller aircraft however can adjust their props to a neutral position, allowing for no forward or reverse thrust. Jet engine blades are fixed.
How does an airplane produce thrust?
It's propeller or jet produces thrust by rotating under engine power.
What is the force that moves a plane forward?
Thrust. The pull of the propellers, the push of the jet engine, the pull of gravity.
