Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/9041
Title: Off-design analysis of transonic bypass fan systems using streamline curvature through-flow method
Authors: Acarer, Sercan
Özkol, Ünver
Özkol, Ünver
Özkol, Ünver
Izmir Institute of Technology. Mechanical Engineering
Keywords: Bypass fan
Through-flow
Streamline curvature
Off-design
Performance map
Issue Date: May-2019
Publisher: Walter de Gruyter GmbH
Abstract: The two-dimensional streamline curvature through-flow modeling of turbomachinery is still a key element for turbomachinery preliminary analysis. Basically, axisymmetric swirling flow field is solved numerically. The effects of blades are imposed as sources of swirl, work input/output and entropy generation. Although the topic is studied vastly in the literature for compressors and turbines, combined modeling of the transonic fan and the downstream splitter of turbofan engine configuration, to the authors' best knowledge, is limited. In a prior study, the authors presented a new method for bypass fan modeling for inverse design calculations. Moreover, new set of practical empirical correlations are calibrated and validated. This paper is an extension of this study to rapid off-design analysis of transonic by-pass fan systems. The methodology is validated by two test cases: NASA 2-stage fan and GE-NASA bypass fan case. The proposed methodology is a simple extension for streamline curvature method and can be applied to existing compressor methodologies with minimum numerical effort.
URI: https://doi.org/10.1515/tjj-2016-0083
https://hdl.handle.net/11147/9041
ISSN: 0334-0082
2191-0332
0334-0082
2191-0332
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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