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A Numerical Investigation on Effects of Asymmetric Angular Position on Performance of Counter Rotating Propeller Systems

Journal Name:

  • International Journal of Science and Engineering Investigations

Publication Year:

  • 2012

Key Words:

Author NameUniversity of Author
Abstract (2. Language): 
Due to their unique abilities and high performance counter rotating propeller systems are being implicated to many sensitive applications in propulsion or ventilation proposes. In this study for the first time counter rotating propellers (C.R.P.) have been studied as asymmetric systems by considering the initial angular position of each stage of propeller as the asymmetric parameter. The study carried out on 4, 8 and 12 blade counter rotating propellers to consider effects of increasing blade solidity factor and consequently strength of tip vortex. This study was based on numerical means to acquire results from models. R.S.M. turbulent model was utilized through ANSYS Fluent commercial software package and the method was validated by comparing its results with experimental data of one of references. Final results demonstrated that choosing a proper angular position could improve efficiency of a low performance C.R.P. system by more than 10 percent. In order to investigate distribution of induced values and effects of tip vortices, distribution of Aerodynamic forces also studied along blades.
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  • 9
134-142
  • English

REFERENCES

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International Journal of Science and Engineering Investigations, Volume 1, Issue 9, October 2012 141
www.IJSEI.com Paper ID: 10912-25
ISSN: 2251-8843
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