/sci/ - Science & Math

Anonymous Fri Sep 4 21:16:31 2020 No.12086190 [View]
File: 1.11 MB, 1920x1280, space_falcon_9_overexpanded.jpg [View same] [iqdb] [saucenao] [google]

>>12086171
Yes, ambient pressure is just whatever the pressure is around the rocket engine at a certain time. This is why you see the plume from a falcon 9 is very skinny when it takes off, but looks like pic related when it gets higher into the air. The engines are optimized for a higher pressure, and as they get higher up and the pressure drops, they become over expanded.

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/sci/ - Science & Math

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