EnSim v1.0.0

[1.0.0] - 2024-12-21

Added

• Core Physics Engine

  • NASA 7-term polynomial thermodynamic data parser
  • Gibbs free energy minimization solver (Gordon & McBride method)
  • 1-D isentropic nozzle flow calculations
  • Numba JIT-optimized functions for real-time performance

• Chemical Species Database

  • H2, O2, H2O, OH, H, O (core H2/O2 combustion)
  • CH4, CO, CO2, N2, N2O (hydrocarbon and nitrous)
  • N2O4, NO2, NO, N2H4 (storable propellants)
  • RP-1 (kerosene surrogate)

• GUI Application (PyQt6)

  • Dark engineering theme
  • KPI dashboard with live updates
  • Input panel with all simulation parameters
  • Efficiency factor inputs (η_c*, η_Cf)
  • Tooltips explaining physics terms
  • Save/Load project (.ensim files)
  • Export to CSV and Markdown report

• Visualization

  • Matplotlib 2D plots (P/Pc, T, Mach vs area ratio)
  • PyVista 3D nozzle with temperature coloring
  • Interactive rotation/zoom

• Documentation

  • README with installation and usage
  • THEORY.md with mathematical background
  • VALIDATION.md with NASA CEA comparison
  • CITATION.cff for academic citation
  • CONTRIBUTING.md for contributors

Technical Details

• 64 automated tests (pytest)
• Validated against NASA CEA within 3%
• Numba JIT compilation for <100ms calculation time

Full Changelog: https://github.com/SpaceEngineerSS/EnSim/commits/v1.0.0