High fidelity multidisciplinary tool development for helicopter quieting

Chung-Lung Chen*, Ya Chi Chen, Bing Chen, Rohit K. Jain, Tom Lund, Hongwu Zhao, Z. J. Wang, Yuzhi Sun, Hossein Saberi, T. H. Shih

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


Flows over helicopter blades are very complex and turbulent. The blades experience dramatically different flow fields at various azimuthal angles. Also, a rotor normally consists of many elastic blades, with a strong coupling between aerodynamics and structure. The problem is indeed multidisciplinary. Current helicopter blade designers use computational models, which depend heavily on experimental data and cannot be used to predict any novel design, which is a significant departure from existing designs. To simulate this multiscale and multidisciplinary physics with confidence, we have developed a robust multidisciplinary computational tool called WINDUS-HELI based on the WIND-US code by coupling CFD with CSD, adopting state-of-the-art numerical approaches, and applying high fidelity physics models. Very reasonable results have been obtained for both the aerodynamic loads/performance and acoustics predictions for all the validation cases studied.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 25th AIAA Applied Aerodynamics Conference, 2007
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Number of pages13
ISBN (Print)1563478986, 9781563478987
StatePublished - 1 Jan 2007
Event25th AIAA Applied Aerodynamics Conference, 2007 - Miami, FL, United States
Duration: 25 Jun 200728 Jun 2007

Publication series

NameCollection of Technical Papers - AIAA Applied Aerodynamics Conference
ISSN (Print)1048-5953


Conference25th AIAA Applied Aerodynamics Conference, 2007
CountryUnited States
CityMiami, FL

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