Searched for: subject:"aeroacoustics"
(1 - 5 of 5)
document
Bailly, C. (author), Bogey, C. (author)
This paper presents a short overview of recent developments of low-dispersive and low-dissipation finite-difference schemes as an alternative to more classical methods of applied mathematics. Needs of accurate and efficient numerical solvers in computational aeroacoustics have motivated these developements over the last two decades. Properties...
conference paper 2006
document
Kok, J.C. (author)
A new high-order, finite-volume scheme is presented that preserves the symmetry property and the dispersion relation of the convective operator. The scheme is applied to large-eddy simulation of compressible, turbulent flow and to the solution of the linearized Euler equations for aeroacoustic applications. For large-eddy simulation, the...
conference paper 2006
document
Gröschel, E. (author), Schröder, W. (author), Meinke, M. (author)
The acoustic simulations of a cold single stream jet at Mach number 0.9 and Reynolds number 3,600 and two heated coaxial jets at Mach number 0.9 and Reynolds numbers 3,600 and 400,000 are performed. The computation of the acoustic field is performed by a two-step approach using a large-eddy simulation (LES) for the flow field and approximate...
conference paper 2006
document
Chiba, K. (author), Imamura, T. (author), Amemiya, K. (author), Jeong, S. (author), Yamamoto, K. (author)
The multi-objective design exploration of the two-dimensional shielding effect for engine noise using V-tale wing has been performed. Two objective functions are considered as the minimization of the sound pressure level at the side and bottom locations relative to the fuselage, which values are evaluated by using the linearized Euler equation....
conference paper 2006
document
Huang, X. (author), Ma, Z. (author), Zhang, X. (author)
This paper outlines the method of a block-structured adaptive mesh refinement (AMR) and its application to the computation of noise radiation from a realistic engine exhaust geometry with flow. The computational model described allows acoustic waves, propagating inside the bypass duct of a generic aircraft engine, to be admitted into a...
conference paper 2006
Searched for: subject:"aeroacoustics"
(1 - 5 of 5)