Aeroelastic analysis of helicopter rotors using computational fluid dynamics/comprehensive analysis loose coupling model

A new rotor computational fluid dynamics(CFD)/comprehensive analysis (CA) loose coupling model is presented in this paper. In the coupled analysis, moderate deflection beam theory is employed to obtain the blade motions, while a high fidelity, overset grid based N-S solver is adopted to compute airloads. In order to improve the computation efficiency, the delta method is used to integrate the airloads computed by CFD analysis into the CA module. Based on the aforementioned method, the airloads at two challenging level-flight conditions of the UH-60A Blackhawk helicopter are investigated, and the simulated results show that the CFD/CA coupling model developed in this paper is efficient and accurate in capturing the rotor unsteady airloads.

• Record URL:
  https://doi.org/10.1177/0954410014538243
• Record URL:
  http://pig.sagepub.com/cgi/content/abstract/229/4/621
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/19966973
• Supplemental Notes:
  • Reprinted by permission of Sage Publications, Ltd.
• Authors:
  • Xiao, Yu
  • Xu, Guo-Hua
  • Shi, Yong-Jie
• Publication Date: 2015-3

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 621-630
• Serial:
  • Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
  • Volume: 229
  • Issue Number: 4
  • Publisher: Sage Publications, Incorporated
  • ISSN: 0954-4100
  • EISSN: 2041-3025
  • Serial URL: http://pig.sagepub.com/

Subject/Index Terms

• TRT Terms: Aeroelasticity; Fluid dynamics; Helicopters; Rotors
• Uncontrolled Terms: Coupled analysis
• Subject Areas: Aviation; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01557421
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 20 2015 3:21PM