| Autor: |
Sugimura, Tadayoshi, Fujiwara, Toshitaka, Lee, John H. |
| Jazyk: |
angličtina |
| Rok vydání: |
1991 |
| Předmět: |
|
| Zdroj: |
Memoirs of the Faculty of Engineering, Nagoya University. 42(2):360-373 |
| ISSN: |
0027-7657 |
| Popis: |
The instability and irregularity of multi-dimensional detonations, experimentally observed for a long time, are studied numerically. By increasing computational resolution significantly the computed results are able to reproduce most of the salient experimental features like inherent instability of a plane ZND detonation, irregular triple-shock structures seen in self-sustaining detonations and very fine triple-shock structures superimposed in a macroscopic triple-shock configuration. Different-strength perturbations are also applied to (i) a ChapmanJouguet and (ii) well-developed multi-dimensional detonations, using different grid resolutions; confirming decoupling of the former and self-sustenance of the latter. Although the effect of resolution on the essential features of a detonation is observed, there seems to be a critical resolution above which most of the experimentally-observed important phenomena are maintained in the numerical simulation. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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