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Acoustic gravity waves: a computational approach
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dutt, P. K. Hariharan, S. I. |
| Copyright Year | 1987 |
| Description | This paper discusses numerical solutions of a hyperbolic initial boundary value problem that arises from acoustic wave propagation in the atmosphere. Field equations are derived from the atmospheric fluid flow governed by the Euler equations. The resulting original problem is nonlinear. A first order linearized version of the problem is used for computational purposes. The main difficulty in the problem as with any open boundary problem is in obtaining stable boundary conditions. Approximate boundary conditions are derived and shown to be stable. Numerical results are presented to verify the effectiveness of these boundary conditions. |
| File Size | 775405 |
| Page Count | 27 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870011348 |
| Archival Resource Key | ark:/13960/t6q003d2j |
| Language | English |
| Publisher Date | 1987-03-01 |
| Access Restriction | Open |
| Subject Keyword | Numerical Analysis Boundary Value Problems Atmospheric Effects Sound Waves Computational Fluid Dynamics Fluid Flow Boundary Conditions Hyperbolic Functions Wave Propagation Finite Difference Theory Euler Equations of Motion Nonlinearity Gravity Waves Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
