Matching between the Stator and Casing Treatment of a High-load Fan

DOI

10.2991/icmmcce-15.2015.434How to use a DOI?

Keywords

Single-stage high-load fan; casing treatment; stator; stability extension; efficiency

Abstract

A single-stage high-load fan with arc skew slot casing treatment is chosen to examine the matching between the stator and casing treatment with arc skew slot. The numerical results show that the introduction of casing treatment with arc skew slot increases the inlet flow angle of the stator, leading to a negative angle of attack at the leading edge of the stator. Hence, properly increasing the inlet geometry angle of the stator would significantly improve the matching relationship between the casing treatment and stator, thereby enhancing the efficiency of the fan. However, increasing the inlet geometry angle of the stator excessively would increase the angle of attack on the suction surface of the stator by a large degree, leading to separation and a drop in efficiency. On the other hand, decreasing the inlet geometry angle of the stator would further increase the negative angle of attack and decrease the relative Mach number. Consequently, the flow capacity would be weakened and the efficiency loss would be increased.

Copyright

© 2015, 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  - Jun-cai Liu
AU  - Wei Yuan
AU  - Zhong-ze Liu
PY  - 2015/12
DA  - 2015/12
TI  - Matching between the Stator and Casing Treatment of a High-load Fan
BT  - Proceedings of the 4th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering 2015
PB  - Atlantis Press
SP  - 1282
EP  - 1290
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmmcce-15.2015.434
DO  - 10.2991/icmmcce-15.2015.434
ID  - Liu2015/12
ER  -