As far as rocketry, most of the thrust happens in the nozzle design, I know that much. Propulsion is a result of the convergent/divergent nozzle geometry.
Much like the diffusers in road cars, which work on ground effect and thus compressibility plays a role, so too do rocket engines have to deal with compressible flow. Thus the design of rocket engines and road car diffusers is similar in principle.
If you watch this video it will give you a hint as to what I'm referring to. I'm sad to say I can't express this more elegantly because I don't fully understand the choking dynamic.
TBHO I never thought density has no effect. As a semi conductor manufacture. It’s kinda hard to believe. Yet maybe it doesn’t matter in the terms of thrust
The thing that fascinates me the most is the combustion process itself. Because as I said, breaking the hydrogen bonds in the hydrocarbons is what allows carbon to rebind with oxygen, that rebinding is what releases heat. However that hydrogen doesn't just vanish, some of it bonds with oxygen to create OH radical species, aka hydroxides and peroxides. It is this dance of hydrogen oxygen and carbon breaking and reformulating themselves into a more inert material that generates the heat of combustion, all of this happening in the blink of an eye.
Em yeah. You got a job? Kinda looking for another in my field. Currently solo In North America in microchip manufacturing. And we are dying. China. Will beat us. But in my heart. I’ll always fight. Critical thinking skills needed. If you’re interested.
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