How a Rocket works?

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