Highlights

Cylinder mass and temperature integrated with both reed valves through every crank angle
Head wall temperature solved from an energy balance, so the warm-up capacity loss is computed
P–V diagram, valve lift traces and volumetric efficiency split into its three factors
Discharge flange and in-cylinder temperatures reported as separate numbers
Four presets including atmospheric and charge-air feed; save inputs on your computer or cloud

A question it answers

What free air delivery and shaft power does this bore, stroke and clearance give at 2000 rpm, and how much capacity do I lose once it is hot?

What you put in

Bore, stroke, clearance ratio, speed, suction and discharge pressure and temperature, reed valve geometry (thickness, free length, port diameter, effective flow area ratio and stop), and cooling parameters. Four presets are provided including an atmospheric-feed and a charge-air-feed variant.

What you get

Pressure–volume diagram, valve lift traces over the cycle, volumetric efficiency decomposed into its three measured factors, free air delivery, shaft power, isothermal efficiency, specific power, discharge FLANGE temperature and in-cylinder temperature reported as separate numbers, the solved wall temperature, the warm-up penalty with its time constant, an annual fuel figure, and a convergence verdict.