Influences of Groove Depth on the Coupling of Small Tip Clearance and Circumferential Grooves

DOI

10.2991/iccia-16.2016.18How to use a DOI?

Keywords

Transonic compressor; Numerical simulations; Circumferential groove casing treatment

Abstract

Coupling of small tip clearance and circumferential grooves of axial-flow compressors significantly improves the stability margin, as well as pressure ratio and efficiency. Different groove depth under coupling of small tip clearance and circumferential grooves has been designed for the isolate subsonic NPU-rotor based. Moreover, influences and mechanism of groove depth on the coupling of small tip clearance and circumferential grooves have been further studied by utilizing a numerical simulation calculation method. The results showed that the role of casing treatment reduced driving force of generating leakage action, postponed negative effects intersecting incoming flow with tip clearance flow and improved flow field of tip passages by sucking leakage flow into the groove.

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  - Tianye Ji
AU  - Xie Fang
AU  - Youjun Wang
AU  - Tao Yi
PY  - 2016/09
DA  - 2016/09
TI  - Influences of Groove Depth on the Coupling of Small Tip Clearance and Circumferential Grooves
BT  - Proceedings of the 2016 International Conference on Computer Engineering, Information Science & Application Technology (ICCIA 2016)
PB  - Atlantis Press
SP  - 92
EP  - 97
SN  - 2352-538X
UR  - https://doi.org/10.2991/iccia-16.2016.18
DO  - 10.2991/iccia-16.2016.18
ID  - Ji2016/09
ER  -