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Artykuły w czasopismach na temat "Time-Harmonic convected acoustics"
Too, Gee-Pinn James, i J. H. Ginsberg. "Cylindrical and Spherical Coordinate Versions of NPE for Transient and Steady-State Sound Beams". Journal of Vibration and Acoustics 114, nr 3 (1.07.1992): 420–24. http://dx.doi.org/10.1115/1.2930279.
Pełny tekst źródłaZHAO, Q., P. L. STAAB, D. R. KASSOY i K. KIRKKOPRU. "Acoustically generated vorticity in an internal flow". Journal of Fluid Mechanics 413 (25.06.2000): 247–85. http://dx.doi.org/10.1017/s0022112000008454.
Pełny tekst źródłaChaumont-Frelet, T., i S. Nicaise. "Wavenumber explicit convergence analysis for finite element discretizations of general wave propagation problems". IMA Journal of Numerical Analysis 40, nr 2 (17.05.2019): 1503–43. http://dx.doi.org/10.1093/imanum/drz020.
Pełny tekst źródłaSattelmayer, T. "Influence of the Combustor Aerodynamics on Combustion Instabilities From Equivalence Ratio Fluctuations". Journal of Engineering for Gas Turbines and Power 125, nr 1 (27.12.2002): 11–19. http://dx.doi.org/10.1115/1.1365159.
Pełny tekst źródłaRaposo, Henrique, Shahid Mughal, Antoine Bensalah i Richard Ashworth. "Acoustic-roughness receptivity in subsonic boundary-layer flows over aerofoils". Journal of Fluid Mechanics 925 (19.08.2021). http://dx.doi.org/10.1017/jfm.2021.658.
Pełny tekst źródła"On the estimation of sound produced by complex fluid–structure interactions, with application to a vortex interacting with a shrouded rotor". Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences 433, nr 1889 (8.06.1991): 573–98. http://dx.doi.org/10.1098/rspa.1991.0065.
Pełny tekst źródłaRozprawy doktorskie na temat "Time-Harmonic convected acoustics"
Marchner, Philippe. "Non-reflecting boundary conditions and domain decomposition methods for industrial flow acoustics". Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0094.
Pełny tekst źródłaThis PhD project is devoted to non-overlapping Schwarz domain decomposition methods for the resolution of high frequency flow acoustics problems of industrial relevance. Time-harmonic solvers are difficult to parallelize due to their high-oscillatory behaviour, and current solvers quickly reach an upper frequency limit dictated by the available computer memory. Non-overlapping Schwarz methods split the domain into subdomains at the continuous level and provide a suitable setting for distributed memory parallelization. The problem is solved iteratively on the interface unknowns, where the keystone for quick convergence relies on appropriate transmission conditions. The first part of this thesis is devoted to the design of transmission operators tailored to convected and heterogeneous time-harmonic wave propagation. To this end we study two non-reflecting boundary techniques that provide local approximations to the Dirichlet-to-Neumann operator. On the one hand, Absorbing Boundary Conditions are designed based on microlocal analysis and pseudodifferential calculus. On the other hand, the convected acoustic stability issue is addressed for Perfectly Matched Layers in convex domains with Lorentz transformation. The second part of this thesis describes how to adapt a generic domain decomposition framework to flow acoustics, and applies the newly designed transmission conditions to simple academic problems. We explain the relation between the non-overlapping Schwarz formulation and an algebraic block LU factorization of the problem. Finally we propose a parallel implementation of the method and show the benefit of the approach for the three-dimensional noise radiation of a high by-pass ratio turbofan engine intake
Streszczenia konferencji na temat "Time-Harmonic convected acoustics"
Sattelmayer, Thomas. "Influence of the Combustor Aerodynamics on Combustion Instabilities From Equivalence Ratio Fluctuations". W ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0082.
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