This study, explores the use of an iterative solution approach for the linearized Euler equations
formulated in the frequency domain for fan tone noise propagation and radiation through bypass
jets. The aim is to be able to simulate high frequency propagation and radiation phenomena
with this code, without excessive computational resources. All computations are performed
in parallel using MPI library routines on a computer cluster. The linearized Euler equations
support the Kelvin-Helmholtz type convective physical instabilities in jet shear flows. If these
equations are solved directly in frequency domain, the unstable modes may be filtered out for
the frequencies of interest. However, direct solutions are memory intensive and the reachable
frequency is limited. Results provided shown that iterative solution of LEE is more efficient
when considered memory requirement and might solve a wider scope of frequencies, if the
instabilities are controlled.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12609095/index.pdf |
| Date | 01 January 2008 |
| Creators | Dizemen, Ilke Evrim |
| Contributors | Ozyoruk, Yusuf |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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