33th Congress of the International Council of the Aeronautical Sciences

03.1 - Aerodynamics CFD Methods and Validation

COMPUTATIONALLY ECONOMICAL METHODS FOR LANDING GEAR NOISE SIMULATIONS

R. Spencer, CFMS Ltd, United Kingdom; M. Allan, Zenotech Ltd, United Kingdom

Landing gear generates lots of noise, but traditional aero-acoustic simulations are very expensive. In this paper, two cheaper simulation methods are applied to a landing gear acoustic test case and compared to the literature. First, an LES simulation using an Octree mesh and no grown boundary layer mesh is used. Secondly, a stochastic simulation using the Fast Random Particle Method is used.


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