| Issue |
E3S Web Conf.
Volume 178, 2020
High Speed Turbomachines and Electrical Drives Conference 2020 (HSTED-2020)
|
|
|---|---|---|
| Article Number | 01035 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/e3sconf/202017801035 | |
| Published online | 09 July 2020 | |
Identification of corner separation modelling in axial compressor stage
Ural Federal University, Turbines and Engines Department, 620002 Yekaterinburg, Russia
* Corresponding author: v.l.blinov@urfu.ru
The paper presents a study of corner separations in hub to blade region at various operation conditions towards compressor stall. It is known that for compressor flows with low or none separations computation fluid dynamics with RANS methods work quite well, however, for highly separated flows they are no longer entirely valid. Therefore, several criteria were applied for prediction and quantification of possible corner separation, and the main interest of this work is in predicting the separation just before it will actually happen by certain flow metrics, so these metrics can be further used as a ‘pre-stall’ criteria whilst the RANS CFD operating point still behave within its appropriate limits. Also the effect of shear lean is discussed in the presented context.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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