Improvement of Combustion Process of Spark-Ignited Aviation Wankel Engine

Lev Finkelberg, Alexander Kostuchenkov, Andrei Zelentsov and Vladimir Minin
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Lev Finkelberg: Central Institute of Aviation Motors n.a. P.I. Baranov, Aviamotornaya St., 2, Moscow 111116, Russia
Alexander Kostuchenkov: Central Institute of Aviation Motors n.a. P.I. Baranov, Aviamotornaya St., 2, Moscow 111116, Russia
Andrei Zelentsov: Central Institute of Aviation Motors n.a. P.I. Baranov, Aviamotornaya St., 2, Moscow 111116, Russia
Vladimir Minin: Central Institute of Aviation Motors n.a. P.I. Baranov, Aviamotornaya St., 2, Moscow 111116, Russia

Energies, 2019, vol. 12, issue 12, 1-11

Abstract: This paper deals with the creation of modern high-performance aircraft power units based on the Wankel rotary piston engine. One of the main problems of Wankel engines is high specific fuel consumption. This paper solves the problem of improving the efficiency of this type of engine. The mathematical model of non-stationary processes of transfer of momentum, energy, mass, and the concentration of reacting substances in the estimated volume provides for the determination of local gas parameters in the entire computational region, which are presented as a sum of averaged and pulsation components. The k - ζ - f model is used as the turbulence model; the combustion is described by the coherent flame model (CFM) based on the concept of laminar flame propagation. As a result of the calculation, we obtained the values of temperature, pressure, and velocity of the working fluid in the working chamber cross-sections of a rotary–piston engine. Various options of the rotor recess shape are considered. Based on the data obtained, the rotor design was improved. The offered shape of the rotor recess has reduced emissions of both nitrogen oxides and carbon dioxide.

Keywords: Wankel engine; gasoline engine; workflow simulation; combustion (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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