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CFD Analysis of Contrarotating Open Rotor Aerodynamic Interactions
Joint Authors
Yang, Zhao
Li, Jie
Zhang, Heng
Shi, Wenbo
Source
International Journal of Aerospace Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-11
Country of Publication
Egypt
No. of Pages
13
Abstract EN
High efficiency and low fuel consumption make the contrarotating open rotor (CROR) system a viable economic and environmentally friendly powerplant for future aircraft.
While the potential benefits are well accepted, concerns still exist with respect to the vibrations and noise caused by the aerodynamic interactions of CROR systems.
In this paper, emphasis is placed on the detailed analysis of the aerodynamic interactions between the front and aft propellers of a puller CROR configuration.
For the first step, unsteady Reynolds-averaged Navier-Stokes (URANS) simulations coupled with dynamic patched grid technology are implemented on the isolated single-rotating propeller (SRP) configuration in various operating conditions in order to test the accuracy and feasibility of the numerical approach.
The numerical results are verified by a wind tunnel test, showing good agreements with the experimental data.
Subsequently, the URANS approach is applied to the CROR configuration.
The numerical results obtained through the URANS approach help to improve the understanding of the complex flow field generated by the CROR configuration, and the comparison of SRP flow field and CROR flow field allows for a detailed analysis of the aerodynamic interactions of the front propeller blade wakes and tip vortices with the aft propeller.
The main reason of the aerodynamic interactions is the mutual effects of the blade tip vortices, and the aft propeller reduces the strength of the blade tip vortices of the front propeller.
Aerodynamic interactions will lead to the periodic oscillations of the aerodynamic forces, and the frequency of the oscillations is linked to the blade numbers.
In addition, a CROR has a larger thrust and power coefficient than that of the SRP configuration in the same operating conditions.
The URANS approach coupled with a dynamic patched grid method is tested to be an efficient and accurate tool in the analysis of propeller aerodynamic interactions.
American Psychological Association (APA)
Shi, Wenbo& Li, Jie& Yang, Zhao& Zhang, Heng. 2018. CFD Analysis of Contrarotating Open Rotor Aerodynamic Interactions. International Journal of Aerospace Engineering،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1167977
Modern Language Association (MLA)
Shi, Wenbo…[et al.]. CFD Analysis of Contrarotating Open Rotor Aerodynamic Interactions. International Journal of Aerospace Engineering No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1167977
American Medical Association (AMA)
Shi, Wenbo& Li, Jie& Yang, Zhao& Zhang, Heng. CFD Analysis of Contrarotating Open Rotor Aerodynamic Interactions. International Journal of Aerospace Engineering. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1167977
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1167977