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1 2001

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Effects of confinement on combustion of TNT explosion products in air

Kuhl A. L., Ferguson R. E., Oppenheim A. K., Sum T-H.J., Reichenbach H., Neuwald P., Kuhl A. L., Ferguson R. E., Oppenheim A.

Archivum Combustionis

2001

Vol. 21 nr 1

3-25

A numerical study of turbulent combustion following detonative explosions of TNT in geometrically similar cylinders filled with air reveals that the combustion rate depends significantly on the size of the chamber (confinement). The fluid-dynamic solution provides an insight into the evolution of combustion fields dominated by strong interactions between turbulence and shock waves. Time profiles of fuel consumption, extracted from this solution, demonstrate the dynamic (thermokinetic) features of the system, expressed by the rate of combustion (akin to velocity) and its change (akin to acceleration). Their evolution is described by means of bi-parametric life functions.