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| Titel: |
Experimental observations of flame acceleration and transition to detonation following shock-flame interaction |
| Auteur: |
Thomas, Geraint Bambrey, Richard Brown, Caren |
| Verschenen in: |
Combustion theory and modelling |
| Paginering: | Jaargang 5 (2001) nr. 4 pagina's 573-594 |
| Jaar: |
2001-12-01 |
| Inhoud: |
Observations are presented from experiments where laminar flame bubbles were perturbed successively by incident and reflected shock waves. Significant flame acceleration was observed in many instances, with the flame closely coupled to the reflected shock wave. The coupled waves are interpreted using a generalized Hugoniot analysis. As the incident shock velocity increased, detonation emerged near the highly convolved reaction zone. Prior to detonation the external visual attributes of the combustion fronts appear identical to turbulent combustion. However, they cannot be due to classical isotropic turbulence. The overall conclusion is that the observed enhancement of combustion is driven by chemi-acoustic interactions and related gas-dynamic effects. An analysis of the prevailing thermodynamic states suggests that thermal auto-ignition chemistry could also play a significant role prior to the onset of detonation. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 11 gevonden artikelen
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