In order to study the feasibility of nonaxisymmetric stator in transonic fan with distorted inlet, a nonaxisymmetric stator was designed. Numerical simulations were performed to investigate the performance of axisymmetric fan and nonaxisymmetric fan with clean inlet. The performance characteristic of the fans were obtained, and the unsteady flow fields at design point were compared and analyzed. Results indicate that the efficiency of nonaxisymmetric fan is higher than that of axisymmetric one near the maximum efficiency point, but its stable working range is smaller than that of axisymmetric one obviously. Unsteady destabilization in the rotor flow field increases because of the nonaxisymmetric structure. While, corner separation is restrained in the stator hub and flow field is improved.
FU Wen-guang
,
SUN Peng*
,
XU Jia-hui
. Numerical research on the influence of non-axisymmetric stator on transonic fan flow field[J]. Journal of Dalian Maritime University, 2015
, 41(1)
: 54
-60
.
DOI: 10.16411/j.cnki.issn1006-7736.2015.01.011
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