MATLAB Rocket Engine Validation Script

This MATLAB script calculates key parameters for a small liquid rocket combustion chamber, including isentropic properties and sizing.

This MATLAB Script is meant to validate Rocket Engine CEA performance results.

This script calculates key dimensions and thermal requirements for a small liquid rocket combustion chamber.

It includes estimates for chamber diameter, wall thickness, heat sink thermal capacity, and cooling limits.

Designed for educational and early design use.

All data should be in SI Units

Data Required is a file with

• Pressure (bar)
• O/F ratio
• Density (kg/m^3)
• Gamma
• Molecular Weight (g/mol)
• Chamber Temperature (K)
• Specific Heat (kJ/kg*K)

Documents Used:

https://spacha.github.io/How-to-Rocket/#heat-transfer - ROCKETLAB/NAWCWD China Lake Paper on Rocket Engine Design

https://www.grc.nasa.gov/www/k-12/airplane/isentrop.html - NASA Isentropic Equations

https://cearun.grc.nasa.gov/ - NASA CEARUN