Research of hydrodynamic processes in the lubrication system of gas turbine engines

Abstract


A lubrication system with supply and scavenge oil gear pumps with electric drives is the subject of research. The features of the workflow in lubrication system units are analyzed and the possibility of applying a homogeneous model for the description of a fine-dispersed air-oil mixture is evaluated. The principle of construction of a mathematical model of a lubrication system based on dynamic equations of the typical processes in the nodes – the flow of the two-phase mixture, mixing of the air and liquid flows, filling cavities of gear pairs in the suction zone of the pump is outlined. The developed mathematical model is verified by comparing the calculated and experimental processes. 


About the authors

A. I. Gulienko

Central Institute of Aviation Motors named after P.I. Baranov, Moscow

Author for correspondence.
Email: goulienko-contrl@ciam.ru

Russian Federation

Candidate of Science (Engineering)

Head of Sector

Yu. M. Shchurovskiy

Central Institute of Aviation Motors named after P.I. Baranov, Moscow

Email: avim@ciam.ru

Russian Federation

Engineer

References

  1. Gurevich O.S., Gulienko A.I. Demonstration Systems of the Gasturbine Engine for the «Electric» Airplane. ICAS Biennial Workshop – 2013 «The More Electrical Aircraft: Achievements & perspectives for the future». Moscow: State Centre of Science «Central Institute of Aviation Motors», 2013. Р. 1-19.
  2. Yanovskiy L.S., Gulienko A.I., Ezhov V.M., Molokanov A.A., Sharanina K.V., Shchurovsky Yu.M. The effect of oil foaming on characteristics of electric drive lubrication system of «electric» aircrafts GTE. Friction&Lubrication in Machines and Mechanisms. No. 8. P. 43-48. (In Russ.)
  3. Uollis G. Odnomernye dvukhfaznye techeniya [One-dimensional two-phase flows]. Moscow: Mir Publ., 1972. 436 p.
  4. Glikman B.F. Avtomaticheskoe regulirovanie zhidkostnyh raketnyh dvigateley [Automatic control of liquid rocket engines]. Moscow: Mashinostroenie Publ., 1974. 296 p.
  5. Shchurovskiy Yu.M. Metodicheskiy podkhod k matematicheskomu modelirovaniyu sistem smazki GTD [Technical approach to mathematic modeling of gas turbine engine lubrication systems]. Sbornik trudov mezhdunarodnoy molodezhnoy nauchnoy konferentsii «XII Korolevskie chteniya». T. 1. Samara: Samara State Aerospace University Publ., 2013. P. 85.
  6. Kalnin V.M., Dyatlov V.V., Naumenkova N.V. Teoriya avtomaticheskogo upravleniya raketnymi dvigatelyami [Theory of automatic control of rocket engines]. Moscow: Mashinostroenie Publ., 1978. 288 p.
  7. Yudin E.M. Shesterennye nasosy [Gear pumps]. Moscow: Mashinostroenie Publ., 1978. 236 p.

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