How a Rocket works ?
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How a Rocket works ?

January 15, 2020

The term rocket science is often used to
describe a concept that is quite difficult to understand but in this video we are going to explain The technology behind rockets
and rocket engines in a simplified scientific manner to keep the rocket moving you have to eject from at
a huge amount of mass at high speed this is simply Newton’s third law of motion the greater the momentum
of the rocket loses the more force or thrust on the
rocket to eject the high-speed mass
form the rocket a liquid fuel oxidizer mixture is burnt
in the rocket combustion chamber the combustion chamber also helps
fuel and oxidizer to mix in an efficient manner due to
its clever mixing design the high-speed jet is passed through
a special a rocket nozzle the function of the nozzle is to
increase the exhaust velocity even further thus increasing the Rockets thrust these kinds of nozzles are called
converging diverging nozzles the subsonic flow is converted
to a supersonic flow with the help of such a nozzle the liquid fuel before entering
the combine chamber travels entirely around the nozzle body this helps to reduce the nozzles
cover temperature and also results in some energy savings. to pump the fuel and oxidizer at an
adequate flow rate two pumps are used these pumps are driven by a turbine which is connected to the same
shaft as the pumps the pump turbine unit is referred
to as a turbo pump A gas generator produces hot gas which will turn the turbine. A bypass stream of fuel and an oxidizer are fed into the gas generator for the
purpose of combustion exhaust from the turbine is mixed
with the main rocket exhaust this unit of the rocket is
called the rocket engine the rocket engine we have discussed so far is more specifically called
a liquid propellant rocket engine they are the most powerful and versatile rocket propulsion
systems available The fuel and oxidizer required for the rocket engines are started to
large tanks as shown during liftoff the thrust produced
by the main engine may not be sufficient so usually a few solid propellant
strap boosters are used to assist the lift off you can see more details about solid
propellant Rockets here the rocket starts with zero speed
at the ground but it should accelerate to
a final speed of around 28000 kilometers per hour to
successfully achieve orbit the solid propellant strap boosters
burned off are very rapidly so to reduce the way of the rocket
they are abandoned after the burn-off this process known as rocket staging when the main engine is burned off is also abandoned and the next
engine takes over the charge in this way the Rockets weight
is greatly reduced thus greater acceleration
can be achieved finally after a few stages of operation the payload is put into the desired orbit rocket staging up to 5 has been
successfully tested you might be wondering how
the rocket is able to maneuver itself to reach its destination the most modern car technique
is called cabled thrust here the rocket nozzle is tilted
by high precision devices it is clear that any deviation from
its normal angle will produce torque which
will make the Rockets body turn after achieving enough to turn
the gimbal angle is set to 0 you can see more details of
the gibble mechanism here we hope you’ve got a nice introduction on the working of rockets
and rocket edges thank you for watching the video

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  1. They forgot to mention that the thrust pushes against the rocket body. Many think the exhaust pushes against the atmosphere, which is incorrect.

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