Analysis of Influence of Working Process Features on Effective Characteristics of Aircraft Piston Engines

Authors: Zelentsov A.A. Published: 20.11.2013
Published in issue: #4(93)/2013  


Category: Power-generating and Transport Machine Building  
Keywords: aircraft piston engines, mathematical modeling, working process

Main trends of development of aircraft piston engines with spark ignition are discussed which provide the inlet manifold fuel injection (or direct fuel injection into the cylinder), different time moments of spark plug operation, the intensive flow swirl at inlet and also the regulated supercharging. The numerical investigation of working processes and heat exchange in combustion chambers of aircraft piston engines is carried out using the three-dimensional nonstationary equations of energy, motion, diffusion and continuity in Reynolds form with addition of k-e turbulence model. Fuel burning rate is simulated using the commonly approved Magnussen-Hjertager combustion model. The AVL FIRE 3-D code package has been used to obtain the numerical results. As a consequence, the optimal values of constructive (the setting angle of the injector of the fuel supply system, the flow swirl at inlet, the pressure rise degree in the supercharging unit) and regulating (angles ofadvance of ignition and fuel injection) parameters of operation of the engines under study are found out.


[1] Grishin Y.A. Analiz i perspektivy razvitiya porshnevykh aviadvigateley [Analysis and prospects of piston aircraft engines]. Moscow, TsAGI im. N.E. Zhukovskogo Publ., 2000.

[2] Kavtaradze R.Z. Teoriya porshnevykh dvigateley [The theory of piston engines]. Moscow, MGTU im. N.E. Baumana Publ., 2008. 719 p.

[3] Basshuysen R., Schafer F. (Hrsg.) Handbuch Verbrennungsmotor. 4. Auflage. Vieweg und Sohn Verlag. Wiesbaden, 2007. 1032 p.

[4] FIRE. Users Manual. Version 2011. AVL List GmbH Graz, Austria, 2011.

[5] Patankar S.V. Computation of conduction and duct flow heat transfer. Innovative Research, 1991, 354 p. (Russ. ed.: Patankar S.V. Chislennoe reshenie zadach teploprovodnosti i konvektivnogo teploobmena pri techenii v kanalakh. Moscow, MEI Publ., 2003. 312 p.).

[6] Magnussen B.F., Hjertager B.H. On mathematical models of turbulent combustion with special emphasis on soot formation and combustion. Proc. 16th Int. Symp. Combust. Cambrige, 1976. pp. 719-729.

[7] Kavtaradze R.Z., Onishchenko D.O., Zelentsov L.A., Finkel’berg L.A., Kostyuchenkov A.N. Modeling of the processes in the intake manifold block-cylinder system of the aviation piston engine with distributed fuel injection. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Mashinostr. [Herald of the Bauman Moscow State Tech. Univ., Mech. Eng.], 2012, no. 4, pp. 3-15 (in Russ.).

[8] Kavtaradze R.Z., Onishchenko D.O., Zelentsov L.A., Finkel’berg L.A., Kostyuchenkov A.N. Modeling of the processes of transportation, combustion and formation of nitrogen oxides in aircraft piston engines with a doubled ignition system. Izv. RAN, Energ. [Proc. Russ. Acad. Sci., Power Eng.], 2012, no. 6, pp. 135-152 (in Russ.).

[9] Lanshin A.I., Finkel’berg L.A., Kostyuchenkov A.N., Zelentsov A.A., Bakanov M.A. Investigation of inlet flow swirl influence on the gasoline aviation piston engine characteristics. Vestn. Voronezh Gos. Tekh. Univ. [Herald of the Voronezh State Tech. Univ.], 2012, vol. 8, no. 2, pp. 96-99 (in Russ.).