Numerical simulation of two-phase flow and heat transfer in complex rotating multi-cavity system

被引：0

作者：

Luo L. ^{[1
]}

Ji H.-H. ^{[1
,2
]}

Shi X.-J. ^{[1
]}

机构：

[1] Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing

[2] Collaborative Innovation Center for Advanced Aero-Engine, Beijing

来源：

Hangkong Dongli Xuebao/Journal of Aerospace Power | 2016年 / 31卷 / 06期

关键词：

Eulerian model; Flow and heat transfer; Mixture model; Oil-gas two-phase flow; Rotating multi-cavity system;

D O I：

10.13224/j.cnki.jasp.2016.06.006

中图分类号：

学科分类号：

摘要：

The numerical simulation of oil-gas two-phase flow and heat transfer of complex rotating multi-cavity system in aeroengine air system and lubrication oil system were studied, and the flow and heat transfer characteristics were analyzed. Mixture model and Eulerian model were used to calculate the velocity, pressure and temperature of a multi-inlet and multi-outlet rotating multi-cavity system of the typical small turbofan engine, which consists of cavities behind and in front of the fan disc, the front bearing chamber, and the cavity in front of the axial-flow disc. Result shows that under same calculation condition, the velocities of two models are similar; the pressures are slightly different only in cavity in front of the axial-flow disc, where the pressure of Eulerian model is 93% of the Mixture model; the temperature of Mixture model is higher, and the front and back bearing temperature of Eulerian model is 93% and 94% of Mixture model, respectively; Mixture model costs 63% of the time of Eulerian model in one iteration. © 2016, Editorial Department of Journal of Aerospace Power. All right reserved.

引用

页码：1318 / 1326

页数：8

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