Numerical investigation on the effect of inlet acceleration on inlet flow distortion in a centrifugal fan

DOI

10.2991/icmmse-17.2017.55How to use a DOI?

Keywords

Inlet flow distortion, Numerical investigation, Centrifugal fan, Inlet acceleration

Abstract

Centrifugal fan is most widely used as an important component in ventilation system. The performance of centrifugal fan is sensitive to the inlet environment; therefore inlet flow distortion is one of the most attention problems. Numerical investigation has been carried out for the comparison of two kinds of inlet, one is standard straight duct and the other is a 90ø curved duct. The results show that the distortion of inlet will seriously affect the impeller. Based on the theory of internal flow, a reasonable pressure gradient is added between the impeller and the curved duct, which is caused by inlet accelerator. Numerical simulation results show that acceleration can effectively suppress the inlet flow distortion; meanwhile it cannot affect the regular work of impeller

Copyright

© 2017, 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  - Wang Yan
AU  - Dong Quanlin
AU  - Xiaomeng Liu
PY  - 2017/04
DA  - 2017/04
TI  - Numerical investigation on the effect of inlet acceleration on inlet flow distortion in a centrifugal fan
BT  - Proceedings of the Second International Conference on Mechanics, Materials and Structural Engineering (ICMMSE 2017)
PB  - Atlantis Press
SP  - 336
EP  - 341
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmse-17.2017.55
DO  - 10.2991/icmmse-17.2017.55
ID  - Yan2017/04
ER  -