Listens: 628 Downloads: 168 Styles:Dark Progressive, Deep Techno Duration: 53:49 BPM: 120 Size: 123.2Mb Recording: 21 August 2015 Publication: 21 August 2015 21:53
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Ракетный двигатель—реактивный двигатель, источник энергии ирабочее телокоторого находится в самом средстве передвижения. Ракетный двигатель — единственный практически освоенный для вывода полезной нагрузки на орбиту искусственного спутника Земли и применения в условиях безвоздушногокосмическогопространства тип двигателя. Другие типы двигателей, пригодные для применения в космосе (например,солнечный парус,космический лифт) пока еще не вышли из стадии теоретической и/или экспериментальной отработки.
Arocket engineis a type ofjet enginethat uses only storedrocket propellantmass for forming its high speed propulsivejet. Rocket engines arereaction engines, obtaining thrust in accordance withNewton's third law. Most rocket engines areinternal combustion engines, although non-combusting forms (such ascold gas thrusters) also exist. Vehicles propelled by rocket engines are commonly calledrockets. Since they need no external material to form their jet, rocket engines can perform in avacuumand thus can be used to propelspacecraftandballistic missiles. Rocket engines as a group have the highest thrust, are by far the lightest, but are the least propellant efficient (have the lowestspecific impulse) of all types of jet engines. The ideal exhaust ishydrogen, the lightest of all gases, but chemical rockets produce a mix of heavier species, reducing the exhaust velocity. Rocket engines become more efficient at high velocities (due to greaterpropulsive efficiencyandOberth effect). Since they do not benefit from, or use, air, they are well suited for uses in space and the high atmosphere.
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