Research on Resistance Characteristics of Axial Breather with Tangential Air Inlet

DOI

10.2991/icmit-16.2016.155How to use a DOI?

Keywords

Aero-engine; shaft center breather; numerical simulation; eccentric arm;

Abstract

By calculating fluid dynamics (CFD), the flow field of several shaft center breathers in different structure has been researched in detailed. Computational domain is simplified according to the actual requirement. RSM turbulent model is used to simulate the strongly swirling turbulent flow field of the shaft center breather. It is proved that the final results of numerical simulations have certain reliability, which could be used to study the resistance characteristic affected by structure parameters. This paper also analyzes the shaft center breather velocity fields and total pressure distribution, focus on a case that pressure on import and export along with total pressure loss. By contrast, the increasing eccentric arm brings more pressure loss at the same rotational speed, in other words, the resistance in the shaft center breather gets bigger. In addition, the increase of rotational speed leads to the increase in pressure loss at the same eccentric arm, and the increase of rotational speed gets more significant impact on the shaft center breather with the bigger eccentric arm. The results of the study contribute to an optimized shaft center breather technology.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Qijun Wang
AU  - Rangshu Xu
AU  - Zhe Dong
AU  - Ning Ge
PY  - 2016/04
DA  - 2016/04
TI  - Research on Resistance Characteristics of Axial Breather with Tangential Air Inlet
BT  - Proceedings of the 2016 3rd International Conference on Mechatronics and Information Technology
PB  - Atlantis Press
SP  - 851
EP  - 858
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmit-16.2016.155
DO  - 10.2991/icmit-16.2016.155
ID  - Wang2016/04
ER  -