VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University561310.18287/2541-7533-2017-16-4-41-50UnknownThe use of gas-dynamic flame stabilization in afterburner combustion chambers of aircraft gas turbine enginesKolesnikovA. S.<p><span lang="EN-US">Adjunct</span></p>sanekkolesnikov1987@rambler.ruPakhol'chenkoA. A.<p><span lang="EN-US">Candidate of Science (Engineering)<br />Professor of the Department of Aircraft Engines</span></p>andrey.paholchenko@mail.ruMilitary Educational and Scientific Center of the Air Force Academy named after Professor N.E. Zhukovsky and Yu.A. GagarinMilitary Educational and Scientific Center of the Air Force Academy named after
Professor N.E. Zhukovsky and Yu.A. Gagarin2212201716441502201201822012018Copyright © 2018, VESTNIK of Samara University. Aerospace and Mechanical Engineering2018<p>It is impossible to abandon the use of the afterburner combustion chamber in designing advanced gas turbine engines. Well-known and well-established structural designs of afterburners were developed several decades ago and do not meet the requirements imposed upon advanced projects, some of which appeared only now. In this context, it became necessary to develop new structural concepts and ways of organizing the working process of afterburner combustion chambers. One of such methods is the rejection of aerodynamic stabilization of the flame by using bluff bodies (angled stabilizers) in favor of gas dynamic stabilization. Gas-dynamic flame stabilization can be effected by the injection of air streams into the gas flow. Its application will reduce the blocking of the flow part of the afterburner, which will be good for the non-afterburning regimes of the engines work; besides, the possibilities of controlling the workflow will be expanded. But the implementation of gas-dynamic stabilization requires a source of compressed air. Bleeding the air from behind the compressor seems to be the best way for this purpose. A proposed combustion chamber flame tube head, the relationship of the characteristics of the injected streams and the gas flow to ensure stable operation of the afterburner, the effect of air bleeding for the needs of the gas-dynamic stabilization of the flame on the workflow of the engine as a whole are discussed in the article.</p>Форсажные камерыгазодинамическая стабилизациятягово-экономические характеристикиAfterburner chambersgas dynamic stabilizationpropulsion and economic characteristics[1. Abramovich G.N. Teoriya turbulentnykh struy. Reprintnoe vosproizvedenie izdaniya 1960 g. [Theory of turbulent streams. Reprint of the 1960 edition]. Moscow: EKOLIT Publ., 2011. 720 p.][2. Nechaev Yu.N., Fedorov R.M., Kotovskiy V.N., Polev A.S. Teoriya aviatsionnykh dvigateley. Ch.1 [Theory of aircraft engines. Textbook for higher educational institutions of the Air Force]. Moscow: Voenno-vozdushnaya Inzhenernaya Akademiya imeni N.E. Zhukovskogo Publ., 2006. 365 p.][3. Kulagin V.V. Teoriya, raschet i proektirovanie aviatsionnykh dvigateley i energeticheskikh ustanovok [Theory, calculation and design of aviation engines and power plants]. Moscow: Mashinostroenie Publ., 2002. 616 p.][4. Abramovich G.N. Prikladnaya gazovaya dinamika. Ch. 1 [Applied gas dynamics]. Moscow: Nauka Publ., 1991. 600 p.][5. Butov A.M., Kozarev L.A. Matematicheskoe modelirovanie rabochego protsessa aviatsionnykh dvigateley: uchebnoe posobie [Mathematical modeling of working process of aircraft engines. Tutorial]. Moscow: Voenno-vozdushnaya Inzhenernaya Akademiya imeni N.E. Zhukovskogo Publ., 1993. 143 p.][6. Fedorov R.M. Kharakteristiki osevykh kompressorov [Characteristics of axial compressors]. Voronezh: Nauchnaya Kniga Publ., 2015. 220 p.]