- #1
sigma
- 24
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Heya. Let's say I want to build a water rocket and I want to pressurise it with a 12 or 16 g CO2 canister used for powering airguns. I want to calculate the optimal size of the pressure tank, and I want to predict the thrust of this device at various nozzle diameters.
So here's the principle:
CO2 is sprayed from the canister into the top of a water-filled tank. The water tank has got a hole of some sort in the bottom where water is ejected to produce thrust.
The main problem I assume is to determine the pressure in the tank. The flow (and thus the thrust) is sort of proportional to the pressure.
Any Ideas?
//Cheers
So here's the principle:
CO2 is sprayed from the canister into the top of a water-filled tank. The water tank has got a hole of some sort in the bottom where water is ejected to produce thrust.
The main problem I assume is to determine the pressure in the tank. The flow (and thus the thrust) is sort of proportional to the pressure.
Any Ideas?
//Cheers