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Inhomogeneous radiation boundary conditions simulating incoming acoustic waves for computational aeroacoustics
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kurbatskii, Konstantin A. Tam, Christopher K. W. Fang, Jun |
| Copyright Year | 1996 |
| Description | A set of nonhomogeneous radiation and outflow conditions which automatically generate prescribed incoming acoustic or vorticity waves and, at the same time, are transparent to outgoing sound waves produced internally in a finite computation domain is proposed. This type of boundary condition is needed for the numerical solution of many exterior aeroacoustics problems. In computational aeroacoustics, the computation scheme must be as nondispersive ans nondissipative as possible. It must also support waves with wave speeds which are nearly the same as those of the original linearized Euler equations. To meet these requirements, a high-order/large-stencil scheme is necessary The proposed nonhomogeneous radiation and outflow boundary conditions are designed primarily for use in conjunction with such high-order/large-stencil finite difference schemes. |
| File Size | 648210 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19970011050 |
| Archival Resource Key | ark:/13960/t53f9pp83 |
| Language | English |
| Publisher Date | 1996-12-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Sound Waves Wave Propagation Finite Difference Theory Acoustic Scattering Vorticity Boundary Conditions Inhomogeneity Linear Equations Aeroacoustics Matrices Mathematics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
