Computational Aeroacoustic Simulation of Landing Gear

Abstract:

RANS / NLAS numerical simulation method is adopted in this paper to carry out study on the aerodynamic noise analysis of basic landing gear configuration. Reynolds average N-S equation is solved with nonlinear turbulence model to establish the landing gear initial flow field, based on which, the NLAS (nonlinear acoustic solver) processed the turbulence fluctuation reconstruction to obtain the near-field acoustic characteristics of landing gear. Combined with the flow characteristics and the associated noise spectrum analysis, aerodynamic noise characteristics of landing gear are achieved. The work in this paper can provide useful research foundation on the following noise reduction design of landing gear.

• Periodical: Applied Mechanics and Materials (Volume 421)
• Pages: 110-115
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.421.110
• Online since: September 2013
• Authors: Guang Jun Yang, Jian Jun Liu, Jing Sun
• Keywords: Aerodynamic Noise, Flow Field Characteristics, Landing Gear, Nonlinear Acoustic Solver, Total Sound Pressure Level

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