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Showing 1 to 3 of 3 for “"Acoustic source terms"”.
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A source-extraction based coupling method for computational aeroacoustics
… of aerodynamically generated sound using a source-extraction based coupling approach. In the present coupling method, the unsteady aerodynamic calculation and the calculation of sound propagation are separated artificially. A set of acoustic perturbation equations is derived by decomposing …
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Computational Solutions of the Forward and Adjoint Euler Equations with Application to Duct Aeroacoustics
<p>Traditionally, the acoustic source terms are modeled by single frequency sinusoidal functions. In the present study, the acoustic sources are modeled by a broadband wave packet. Radiation of acoustic waves at all frequencies can be obtained by Time Domain Wave Packet (TDWP) method in a single …
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High Fidelity Open Rotor Noise Prediction
… to be the most realistic description of aeroacoustic noise generation, as it is a direct rearrangement of the Navier-Stokes equations. The \fwh\ equation is difficult to solve for realistic test cases such as an open rotor, and is susceptible to several types of error. This thesis categorises …