Propellant properties mistakes

reilleya / openMotor

An open-source internal ballistics simulator for rocket motor experimenters

GNU General Public License v3.0

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Propellant properties mistakes #201

Open NAOS-PUPPIS opened 2 years ago

NAOS-PUPPIS commented 2 years ago

The data for the propellants DX and SB in the editor are not correct (burn rate coefficient) according to Nakka data

RandomDude4 commented 2 years ago

I agree, it seems to round to 0 when using metric units. Also KNSB and KNDX seems to have been swapped? But I am not sure I have not compared to actual Nakka data.

reilleya commented 1 year ago

Interesting. That said, Nakka has multiple sets of data for many formulas, and I honestly think some of the piece-wise ones are just overfitting a small characterization run so I'm skeptical of his data. If anyone sends me a difference source for sugar propellant regression data I might switch over to that for the next oM version.