- #61
Jason Louison
- 69
- 2
Formulas For Engine Cylinder Perssure
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SUMMARY
This discussion focuses on calculating cylinder pressure in four-stroke engines at various crank angles, specifically addressing the challenges of creating a flexible formula for multiple cylinders. Jason Louison, the original poster, seeks a single function to determine pressure across all cylinders simultaneously. Contributors emphasize the complexity of this task, noting that factors such as piston offset, valve timing, and air flow must be considered. Ultimately, a series of conditional statements in a spreadsheet model can approximate cylinder pressure based on crank angle, but a universal equation applicable to all engine types remains elusive.
PREREQUISITES- Understanding of four-stroke engine mechanics
- Familiarity with pressure-volume (p-V) diagrams
- Proficiency in spreadsheet software for modeling
- Knowledge of engine dynamics, including piston offset and valve timing
- Research "Four-Stroke Engine Pressure Calculations" for foundational equations
- Explore "Pressure-Volume Diagrams" to understand engine performance modeling
- Learn about "Inertia Effects in Engine Dynamics" to refine calculations
- Investigate "Losses in Engine Models" to improve accuracy in simulations
Engineers, automotive students, and enthusiasts involved in engine performance analysis and modeling will benefit from this discussion.
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