| Autor: |
Mankbadi, R. R., Shih, S. H., Hixon, D. R., Stuart, J. T., Povinelli, L. A. |
| Zdroj: |
Journal of Computational Acoustics; Sep1998, Vol. 6 Issue 3, p307-320, 14p |
| Abstrakt: |
While large-scale simulation of jet noise is the most thorough technique currently available for jet noise prediction, three-dimensional direct computation of both the near and far field requires prohibitive computational capability. In this work we propose to limit large-scale simulation to the near field to provide the pressure distribution over a cylindrical surface surrounding the jet. A surface-integral formulation is presented herein in which the calculated pressure on the cylindrical surface is used to obtain the far-field sound, without the need for the normal derivative of the pressure. The results are compared to that of direct large-scale simulation and to the zonal approach in which linearized Euler equations are used as an extension tool. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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