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To convert as much of your built up pressure energy, your nozzle should be long enough for the built up pressure to decrease to ambient pressure or slightly below. This is true for both a convergent nozzle, and the convergent-divergent nozzle The length of the different sections depend on the structure of around the nozzles. How much pressure can it handle, ...

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In class, we haven't talked about it as a specific recovery point. But as a gradual increase in thrust based on airspeed. Q: How does the thrust decrease? Airspeed thrust decreases as the altitude increases. (High altitude = low pressure/less air) less air = less thrust Q: How does ram pressure increase? Ram pressure increases when you fly into the air ...

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The thrust ($T$) of an engine is $T = Q(V_{out}-V_{in})$ where $Q$ is the mass flow through the engine, $V_{out}$ is the exit velocity of the exhaust gas and $V_{in}$ is the speed at which the air flow enters the engine inlet. The mass flow $Q$ is a product of volume of the air sucked by the engine and air density. When engine is producing considerable ...

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Put simply, the variation in power is due to the distinction between the exhaust jet power and mechanical power added to the vehicle. The power of the exhaust gas stream measured in the rocket-fixed reference frame is only dependent on the rate of energy release by the propellant. The rate of kinetic energy addition to the vehicle depends on the thrust ...

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Rocket produce constant thrust with speed,that mean increase power with speed. If you limit "power" to mean the change in energy over time of the vehicle + unburned fuel, then yes, that's correct. Where this increase in power come from if fuel burn rate is constant,how explain this in reference frame of rocket without violate physics laws? It ...

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Power = Work/time = Force × distance/time = mass × acceleration × Velocity We must remember these definitions were created for draft horses before the age where aerodynamic drag was significant. "Power" more accurately describes the Energy state of an object. In a vacuum, away from a gravitational field, a rocket under constant thrust force will ...

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