Detonation in hydrogen–nitrous oxide–diluent mixtures: An experimental and numerical study
Knowledge of H_2–N_2O mixtures explosive properties is important to the safety of nuclear waste storage and semi-conductor manufacturing processes. The present study provides new experimental data on H_2–N_2O detonations, and proposes a thermochemical model which is used to numerically simulate detonation propagation. Detonation cell size has been measured in a variety of H_2–N_2O–Ar mixtures. Even at low initial pressure, these mixtures are very sensitive to detonation with cell size of few millimeters. Using a reduced version of a detailed reaction scheme, 2-D Euler simulations have been used to examine the features of detonation in H_2–N_2O–Diluent mixtures. A PLIF model has been applied to allow for direct comparison with experimental results. Statistical analysis of the cellular cycle dynamics has been performed.
© 2014 The Combustion Institute. Published by Elsevier Inc. Received 30 October 2014; Accepted 18 November 2014; Available online 15 December 2014. This work was partly supported by the French ''Ministére de l'Éducation Nationale, de l'Enseignement Supérieur et de la Recherche''. 2D detonation simulations were performed using computational resources of the EPEE Federation of the CNRS and University of Orléans and of the CCSC Computational Center of Région Centre. The authors are grateful to Professor J. M. Austin (Caltech) for allowing the reproduction of her work in Figs. 13 and 14.
Accepted Version - DetoH2N2O_Preprint.pdf