Showing 2 results for Detonation
K. Mazaheri and H. Assadollahi,
Volume 21, Issue 2 (1-2003)
Abstract
One of the basic equations to analyze the detonation of high explosives is the equation of state of the detonation products. Due to the very high pressure of the product, the direct measurement of the thermodynamic variables such as pressure or temperature is not possible. In this research, the parameters of BKW and HOM equations of state of detonation products are determined via experimental measurement of the detonation velocity. Comparing the calculated parameters show good agreement with the published results for a vast range of explosives.
It is also shown that the curve fitting of the enthalpy of the products in standard states to a forth degree polynomial of temperature improves the results with respect to entropy fitting used by Mader.
Keywords: BKW, HOM, Equation of state, Detonation product, Explosion simulation
M. Hosseinalipour, M. M. Doustdar and K. Mazaheri, ,
Volume 24, Issue 2 (1-2006)
Abstract
A numerical simulation has been carried out to study the detonability characteristics of two- phase unconfined clouds. The parameters equivalence ratio, turbulence, shape, volume and uniformity of the cloud and the delay time distribution are recognized and introduced as the most important factors determining the reactivity of the cloud and influencing the initiation of a successful detonation. With regard to the dynamic behavior of the cloud and the changes in the magnitude of these significant characteristic parameters, the best ranges of time and position for secondary detonator action are determined.
Comparisons are also performed with experimental results along with theoretical analyses to validate the numerical results obtained in this study.
