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BurnSim is free software for simulating solid rocket motors, built to be as simple to use as possible while staying accurate for real motor designs. This wiki documents BurnSim 4, the current cross-platform (Windows, Mac, Linux) rewrite of BurnSim, and covers general topics related to experimental solid propellant motors: propellant characterization, motor testing, data acquisition, and more.

Still running BurnSim 3? Its interface differs substantially from what's shown below - see the BurnSim 3 documentation instead.

For questions about BurnSim itself, see contact me.

The Main Window

Hover over or click on parts of the window below for more detail on each area.

Getting Started

New to BurnSim? Start with Getting Started with a Basic Simulation.

Topics

• BurnSim Fields - full field-by-field reference for the main window
• Grain Types - the available grain geometries
• Propellant Characterization - getting the numbers BurnSim needs for a propellant
• Erosive Burning - simulating crossflow-augmented burn rate
• Characterization Motor - a simple test motor for gathering burn-rate data
• Data Acquisition - instrumenting a motor test
• Test Data Tab and Import from CSV - bringing real test data into BurnSim