New answers tagged combustion
1
It's not very scientifical, but for candy fuel engines I built when I was younger, I used simple formula to compute area of the nozzle (An) from area of engine (internal diameter) (Ae):
An = Ae / K
or for radiuses:
Rn = sqrt(Re^2 / K)
or for diameters:
Dn = 2 * sqrt((De/2)^2 / K)
for candy fuels, K of around 100 worked for me.
So for example if you have ...
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