OpenThrustPy

OpenThrustPy is a software created by members of the Waterloo Rocketry design team at the University of Waterloo. The aim of the project is to provide an accurate thrust curve and apogee prediction for hybrid engine rockets that use NOS as their oxidizer.

Wiki: https://github.com/waterloo-rocketry/OpenThrustPy/wiki

Report: https://www.overleaf.com/read/kfprjrjbkmbh

Features

• Accurate thrust curve prediction
• Plotter functionality
• Multiple injector flow models
• Easily configurable to different rockets
• More to be added...

Planned Future Additions

• More graphing capabilities
• Fuel regression for more accurate thrust curve

Using the Program

Right now to use the program, you should first generate an RPA table using RPA software found here: http://www.propulsion-analysis.com/index.htm. For our purposes, the free version worked fine. The table should have increments of 10 Psi for the pressure and 0.1 for the OF ratio. After that build and run the program. Input your settings and run the simulation.

Requirements

• Scipy
• Numpy
• Matplotlib
• Pandas
• QtPy

Contribute

• Wiki: https://github.com/waterloo-rocketry/OpenThrustPy/wiki
• Issue Tracker: https://github.com/waterloo-rocketry/OpenThrustPy/issues
• Source Code: https://github.com/waterloo-rocketry/OpenThrustPy

Disclaimer

This program merely models the thrust and apogee of a rocket using research and data. It can not guarantee the safety or functionality of any rocket being built. We do not take any responsibility for any mistakes, accidents, disasters, etc. that can occur while building or testing your rocket. This program is meant as an aide and should not be used as the sole source of data. Double check all your calculations and always follow proper safety procedures.

License

OpenThrust is licensed under GPL 3.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.