Open AccessЧИСЛЕННОЕ ИССЛЕДОВАНИЕ ТЕПЛООТДАЧИ В КАМЕРЕ ПОДШИПНИКА ГТД
Author(s) -
Дуаиссиа Омар Хадж Аисса
Publication year - 2018
Publication title -
otkrytye informacionnye i kompʹûternye integrirovannye tehnologii
Language(s) - English
Resource type - Journals
eISSN - 2663-2411
pISSN - 2071-1077
DOI - 10.32620/oikit.2018.81.10
Subject(s) - heat transfer coefficient , computational fluid dynamics , mechanical engineering , bearing (navigation) , lubrication , heat transfer , rotor (electric) , work (physics) , mechanics , cabin pressurization , materials science , engineering , computer science , physics , artificial intelligence
To determine the required oil pumping through the GTE rotor support, an accurate calculation of the heat flow from the engine to the GTE bearing chamber is necessary. The complexity of the mathematical description of thermo-hydraulic processes is associated with the presence of a multiphase mixture in the bearing chamber, consisting of oil, going for lubrication and cooling of the support elements, and air, used for seals pressurization. The work is devoted to the issues of numerical study of the effect of regime parameters on the heat transfer coefficient in the bearing chamber of the GTE. For these purposes, the methodology based on conservation laws and CFD modeling methods is applied. The change in the heat transfer coefficient in the characteristic sections of the chamber is considered. The influence of the oil film distribution around the circumference of the chamber is shown.