More on D(k) for PBX-9502

Partom, Yehuda
April 2004
AIP Conference Proceedings;2004, Vol. 706 Issue 1, p879
Academic Journal
Detonation wave propagation can be efficiently calculated using the Detonation Shock Dynamics (DSD) model. The main part of DSD is the detonation velocity versus front curvature relation D(k). D(k) is usually determined from breakout front shapes z(r) obtained from rate stick tests, as reported by Hill et al for PBX-9502 sticks of three diameters: 10, 18 and 50 mm. It has been shown before that D(k) can be predicted from a reactive flow model . As DSD is a quasi-steady-state model, it seems plausible that D(k) for DSD can be predicted from quasi-steady-state reactive flow calculations. In what follows we check the validity of such a prediction. We predict D(k) for PBX-9502 from our reactive flow model, use it to determine rate stick front shapes, and compare the results with data. We find that the validity of predicting D(k) from steady state reactive flow equations remains in doubt. © 2004 American Institute of Physics


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