Challenges for time and frequency domain aeroacoustic solvers
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Inclou dades d'ús des de 2022
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hdl:2117/27610
Tipus de documentText en actes de congrés
Data publicació2014
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
The linearized Euler equations (LEE) model acoustic propagation in the presence of rotational mean flows. They can be solved in time [1–3] or in frequency [4–6] domain, with both approaches having advantages and disadvantages. Here, those pros and cons are detailed, both from a modeling and a numerical/computational perspective.
Furthermore, a performance comparison and cross-validation between two frequency and time domain state-of-the-art solvers is performed. The frequency domain solutions are obtained with the hybridizable discontinuous Galerkin (HDG) [7–12] and the embedded discontinuous Galerkin (EDG) [13–15] method, while the time domain solver is an explicit discontinuous-Galerkin based solver [1]. The performance comparison and cross-validation is performed on a problem of industrial interest, namely acoustic propagation from a duct
exhaust in the presence of realistic mean flow.
CitacióAngeloski, A. [et al.]. Challenges for time and frequency domain aeroacoustic solvers. A: World Congress on Computational Mechanics. "11th World Congress on Computational Mechanics (WCCM XI); 5th European Conference on Computational Mechanics (ECCM V); 6th European Conference on Computational Fluid Dynamics (ECFD VI): July 20-25, 2014, Barcelona, Spain". Barcelona: 2014, p. 1-12.
Dipòsit legalB-17935-2014
ISBN978-84-942844-7-2
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