Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
Computational Analysis of Aeroacoustic Effect of a Seal on Slat Cove for Different Angles of Attack
Submission Author:
Fernando H T Himeno , SP
Co-Authors:
Daniel Sampaio Souza, Filipe Amaral, Marcello Augusto Faraco de Medeiros
Presenter: Marcello Augusto Faraco de Medeiros
doi://10.26678/ABCM.ENCIT2016.CIT2016-0712
Abstract
The work to be presented aims at studying the effect of a seal on the slat cove surface, commonly observed in real scale airplanes,on the turbulent structures inside the cove potentially related to aeroacoustic noise generation. Timeresolved simulations of the flow around an high-lift geometry was computed using the commercial code PowerFLOW, which is based on the Lattice-Boltzmann method. An algorithm based on the Ffowcs Williams-Hawkings analogy was used for noise propagation from near to far field. Comparisons between the present simulations with experimental data processed with beamforming technique allied with a deconvolution method will be made to assess the quality of the numerical solution. Analysis of aeroacoustic seal influence for different angles of attack is proposed. Additionally, analysis of the the effect of the seal on relevant time average flow quantities, instantaneous field and fluctuation spectral contents will be carried out.
Keywords
slat, Lattice Boltzmann, POD
