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The use of kirchhoff's method in jet aeroacoustics
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lyrintzis, Anastasios S. |
| Copyright Year | 1995 |
| Description | Supersonic jet aeroacoustics will be studied using computational techniques. In the study, a Kirchhoff method is used to predict flow generated noise in the mid- and far-fields. This type of method shows promise because it is based on surface integrals and not the volume integrals found in traditional acoustic prediction methods. The Kirchhoff method is dependent on accurate prediction of flow variables in the near-field. Here, computational fluid dynamics (CFD) programs are used for these predictions. Specifically, an existing large eddy simulation (LES) code will be modified for aeroacoustic applications. Issues involved in the implementation of the Kirchhoff method as well as the coupling with the CFD code will be discussed. Important physical noise parameters will be identified and investigated in the study. |
| File Size | 1039879 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19980002890 |
| Archival Resource Key | ark:/13960/t0wq4wq6p |
| Language | English |
| Publisher Date | 1995-01-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Noise Propagation Large Eddy Simulation Computational Fluid Dynamics Jet Aircraft Noise Far Fields Supersonic Jet Flow Applications Programs Computers Computerized Simulation Surface Noise Interactions Grazing Flow Prediction Analysis Techniques Aeroacoustics 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 |
