论文信息 - Evaluation of boundary conditions for computational aeroacoustics

Evaluation of boundary conditions for computational aeroacoustics

The performance of three acoustic boundary condition formulations is investigated by computing a test problem with a known analytic solution. By using a fixed grid and time step, all variations in the solution are due solely to the boundary condition. The effect of implementation differences on the performance of a given boundary condition is also studied. Details of all implementations are given. Results are shown for the acoustic field of a monopole in a uniform freestream.

[1] A. Majda,et al. Radiation boundary conditions for acoustic and elastic wave calculations , 1979 .

[2] Elaine S. Oran,et al. Numerical Simulations of the Structure of Supersonic Shear Layers , 1991 .

[3] Eli Turkel,et al. Far field boundary conditions for compressible flows , 1982 .

[4] Michael B. Giles,et al. Nonreflecting boundary conditions for Euler equation calculations , 1990 .

[5] Reda R. Mankbadi,et al. Structure of Supersonic Jet Flow and Its Radiated Sound , 1993 .

[6] C. Tam,et al. Dispersion-relation-preserving finite difference schemes for computational acoustics , 1993 .

[7] S. Ragab,et al. The nonlinear development of supersonic instability waves in a mixing layer , 1992 .

[8] K. Thompson. Time-dependent boundary conditions for hyperbolic systems, II , 1990 .