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Reduced-order jet noise modelling for chevrons

Karthik Depuru (Energy)


Aircraft jet noise has been a major community concern since the 1940s. Consequently, many noise-suppression devices have been developed to address this issue. The most promising one amongst such devices is chevrons. The objective is to identify the noise sources in a chevron jet for the given flow-field from a reduced-order turbulence model such as Reynolds Averaged Navier Stokes (RANS) model instead of expensive Large Eddy Simulation (LES) model. This will significantly reduce the computational cost involved in the jet noise prediction.


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