Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Radulescu, Matei I."'
Autor:
Zangene, Farzane, Radulescu, Matei I.
This study investigates the role of two inert mono-atomic diluents, argon and helium, on the detonation structure in order to assess the importance of vibrational non-equilibrium and wall losses. When relaxation effects and wall losses are neglected,
Externí odkaz:
http://arxiv.org/abs/2410.17561
Publikováno v:
In Combustion and Flame February 2024 260
Autor:
Zangene, Farzane, Radulescu, Matei I.
Publikováno v:
In Proceedings of the Combustion Institute 2024 40(1-4)
Autor:
Xiao, Qiang, Radulescu, Matei I.
Publikováno v:
Combustion and Flame 2020, Volume 220, Pages 410-428
The present work examines the role of instability and diffusive phenomena in controlling the limits of detonations subject to lateral strain rates. Experiments were conducted in hydrocarbon-oxygen mixtures with varying levels of cellular instability.
Externí odkaz:
http://arxiv.org/abs/2004.06851
Autor:
Yang, Hongxia, Radulescu, Matei I.
We show experimentally and numerically that when a weak shock interacts with a finger flame in a narrow channel, an extremely efficient mechanism for deflagration to detonation transition occurs. This is demonstrated in a 19-mm-thick channel in hydro
Externí odkaz:
http://arxiv.org/abs/1911.05552
Publikováno v:
Proceedings of the Combustion Institute 2020
We evaluate the effect of boundary layer losses on two-dimensional H2/O2/Ar cellular detonations obtained in narrow channels. The experiments provide the details of the cellular structure and the detonation speed deficits from the ideal CJ speed. We
Externí odkaz:
http://arxiv.org/abs/1911.04617
Autor:
Xiao, Qiang, Radulescu, Matei I.
Publikováno v:
Combustion and Flame 2020, Volume 215, Pages 437-457
The present work revisits the problem of modelling the real gaseous detonation dynamics at the macro-scale by simple steady one-dimensional (1D) models. Experiments of detonations propagating in channels with exponentially expanding cross-sections we
Externí odkaz:
http://arxiv.org/abs/1902.04602
The present paper seeks to determine the mechanism of flame acceleration and transition to detonation when a turbulent flame preceded by a shock interacts with a single obstruction in its path, taken as a cylindrical obstacle or a wall in the present
Externí odkaz:
http://arxiv.org/abs/1806.03323
Autor:
Maxwell, Brian McN., Bhattacharjee, Rohit R., Lau-Chapdelaine, Sebastien S. M., Falle, Sam A. E. G., Sharpe, Gary J., Radulescu, Matei I.
The present study addresses the reaction zone structure and burning mechanism of unstable detonations. Experiments investigated mainly two-dimensional methane-oxygen cellular detonations in a thin channel geometry. The sufficiently high temporal reso
Externí odkaz:
http://arxiv.org/abs/1610.01204
Autor:
Sirmas, Nick, Radulescu, Matei I.
The problem of thermal ignition in a homogeneous gas is revisited from a molecular dynamics perspective. A two-dimensional model is adopted, which assumes reactive disks of type A and B in a fixed area that react to form type C products if an activat
Externí odkaz:
http://arxiv.org/abs/1609.02458