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Old September 17th, 2019, 09:45 PM
wbuthod wbuthod is offline
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Default Figuring atmospheric pressure

This problem has been defying my attempts to model:

If you place a tall half-closed inside a very, very strong artificial gravity field, the closed end at the "bottom" of the acceleration, how do you calculate in pressure increase at the closed end? I'd know the length and diameter of the tube, the atmo pressure and density outside the AG field, and the acceleration in m/s^2 of the AG field.

Part of this stemmed from a discussion of grav modules, and the idea that a grav module with a bore ~10cm in length through the AG field could, at 25k G, accelerate an arbitrary mass that fits through the bore to about 223m/s, creating a recoil-less subsonic small arm, delivering about 500 joules for a 10g projectile.

The discussion turned weird, covering using a larger version of that high-G field as an impeller for a no-moving-part atmospheric pump, or a jet engine. And here I am, trying to figure out how much pressure could be generated.
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