Planar laser-induced fluorescence of hydroxyl radical (OH-PLIF) is a powerful technique to visualize the reaction zone of detonation waves. In a previous study, a PLIF model was used to post-process numerical simulations of detonation. This work shed light on the main limitations of this imaging technique when using incident laser light propagating opposite to the detonation wave. In the present study, we focus on a different configuration, that in which the laser light propagates perpendicular to the direction of detonation propagation. This study is a collaboration with Pr. S. Xu at Tsinghua University, Pr. D. Lacoste and Dr K. Chatelain at KAUST, and Dr J. Melguizo-Gavilanes at Institut Pprime (CNRS-Poitiers).
创建: Jul 09, 2018 | 11:52
Ammonia is a very important industrial chemical used in its pure form (e.g. as fertilizer and alkaline cleansers), and as a feedstock for a wide variety of chemicals (e.g. ammonium sulfate/nitrate/hydrogen phosphate and urea). Its thermodynamic properties, make ammonia attractive in the framework of industrial refrigeration. In addition, the possibility of using it as a fuel has recently sparked new interest since its combustion does not produce CO2 or unburnt hydrocarbons. Despite numerous potential industrial application, the risk of detonation in NH3-based mixtures has not been characterized in details. The goal of the present project is to assess the risk of detonation of NH3-based mixtures through an experimental and numerical investigation.
创建: Jul 09, 2018 | 11:59
