TY - JOUR
T1 - A three-dimensional body-force model for nacelle-fan systems under inlet distortions
AU - Mao, Yinbo
AU - Dang, Thong Q.
N1 - Funding Information:
The work was partially funded by the Boeing Company through a collaboration with Colorado State University under subaward G-00255-1 . The authors are grateful for the inputs provided by Dr. Hin-Fan Lau and Dr. Sho Sato at Boeing in Seattle, and Dr. Xinfeng Gao at Colorado State University. We also thank Mr. Nathan Spotts for providing us with his CFD results.
Publisher Copyright:
© 2020 Elsevier Masson SAS
PY - 2020/11
Y1 - 2020/11
N2 - A steady-state three-dimensional body-force model is presented for nacelle-fan system modeling. The model is based on three-dimensional averaged governing equations that are rigorously derived from three-dimensional unsteady Reynolds-Averaged Navier–Stokes equations. The three-dimensional nature of the model provides intuitive advantages, in terms of both flow physics and implementations, in modeling inlet distortion problems. One application of this model is to predict the effects of the fan system under inlet distortion upon the upstream and downstream flow field of the fan system. This is particularly useful for nacelle designers. The proposed body force model is formulated and implemented without any knowledge of the fan blade geometry. Instead, fan performance data provided by engine suppliers are fed into the body force model to replicate/predict the fan characteristics and their interactions with the upstream flow field under inlet distortions. This approach is validated with inlet distortion data to demonstrate its capability in general off-design conditions.
AB - A steady-state three-dimensional body-force model is presented for nacelle-fan system modeling. The model is based on three-dimensional averaged governing equations that are rigorously derived from three-dimensional unsteady Reynolds-Averaged Navier–Stokes equations. The three-dimensional nature of the model provides intuitive advantages, in terms of both flow physics and implementations, in modeling inlet distortion problems. One application of this model is to predict the effects of the fan system under inlet distortion upon the upstream and downstream flow field of the fan system. This is particularly useful for nacelle designers. The proposed body force model is formulated and implemented without any knowledge of the fan blade geometry. Instead, fan performance data provided by engine suppliers are fed into the body force model to replicate/predict the fan characteristics and their interactions with the upstream flow field under inlet distortions. This approach is validated with inlet distortion data to demonstrate its capability in general off-design conditions.
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U2 - 10.1016/j.ast.2020.106085
DO - 10.1016/j.ast.2020.106085
M3 - Article
AN - SCOPUS:85088867009
SN - 1270-9638
VL - 106
JO - Zeitschrift fur Flugwissenschaften und Weltraumforschung
JF - Zeitschrift fur Flugwissenschaften und Weltraumforschung
M1 - 106085
ER -