RT Journal Article SR Electronic A1 Drbal, Milan T1 Computational Model of Rotary Engine Thermodynamic Cycle JF Acta Mechanica Slovaca YR 2019 VO 23 IS 2 SP 26 OP 29 DO 10.21496/ams.2019.012 UL https://www.actamechanica.sk/artkey/ams-201902-0003.php AB During the engine prototype design period the performance predictions are the key subject of the development. For the piston reciprocating engines a wide spectrum of the analytical approaches was developed as well as the numerical software (GT-Suite, Ricardo Wave etc.) is being used often. The increasing demand for the high-power output engines with a low displacement and weight for the UAV and marine applications, makes Wankel rotary engine a sensible option. The commercially available software for the performance prediction does not include required algorithms for the rotary engine calculation. This paper provides an approach to be used in the simulation model setup as well as the comparison of the simulation outcome with the measured data.