5 ms·
Oooooook... So we start off with misinformation and insults. The problem here is you think I don't know what I'm talking about, and that's not a good assumption
by burnte 5y ago
Oooooook... So we start off with misinformation and insults. The problem here is you think I don't know what I'm talking about, and that's not a good assumption. And you're being overly pedantic in order to find flaws in what should be an ordinary conversation.
1. Yes, the gas will expand indefinitely eventually. That doesn't change anything about the way nozzle's are designed.
2. Obviously everything has cost constraints. That doesn't change the fact that within financial and material limits, you want to extract all the energy possible. A larger bell does not equal mor energy in all cases. In fact, once you have your exhaust in a non-expanding perpendicular flow, there's nothing left to extract. Alfo, fuel is run through tubing around the bell to cool it down, it's not generally wasted to be coolant, you use pumps to run it through tubes in the bell to cool the bell, heat up the fuel, and that adds pressure to the fuel as it then cycles back up and exists into the reaction chamber.
3. Yes, you 100% can design your injector to not make the material not impact the bell. I said sides to indicate where I'm talking about, no need to mock a simple word choice, I never said they were ther for ornamentation, so you're just being rude.
4. Just because exhaust has a presure doesn't mean every particle impacts the bell, or you'd have a ring of exhaust flow with nothing in the center. You can inject your material so that it flows down the center. Note, I'm talking about the ceramic material injected into the flow as described in the article, NOT THE FUEL. I think you think I'm talking about fuel this entire time, which is not correct.
6. Yes, you just explained how a rocket works in the same way I did after trying to tell me how stupid I am.
7. I was talking abut the ceramic material injected into the flow, not the engines. Nothing I described applies to ion engines. Please mke sure you understand the comment before you rup into someone.