@article{oai:tsukuba.repo.nii.ac.jp:00028313,
 author = {笠原, 次郎 and Nagura, Yuto and Kasahara, Jiro and Sugiyama, Yuta and Matsuo, Akiko},
 issue = {2},
 journal = {Proceedings of the Combustion Institute},
 month = {},
 note = {The geometry and characteristic length of diffraction and re-initiation during a two-dimensional detonation propagation were revealed by visualization. C2H4 + 3O2 (unstable), 2C2H2 + 5O2 + 7Ar (stable) and 2C2H2 + 5O2 + 21Ar (stable) were used as the test mixtures. Experiments were performed over the deviation angle range from 30° to 150° and the initial pressure range from 15.8 to 102.3 kPa. By self-emitting photography, we confirmed that the geometry and the characteristic length of diffraction are not different among test gases, with the exception of the fan-like structure of re-initiation that occurred regardless of whether the mixture was unstable or stable. We conducted a compensative experiment by changing the deviation angle and initial pressure, and summarized the detonation diffraction by shadowgraph. At deviation angles larger than 60°, we measured the distances from the vertex of the channel corner to the point where the transverse detonation wave reflected on the under wall (= wall reflection distance) and confirmed that wall reflection distances are approximately in the range of 10–15 times the cell width, whether the mixture is unstable or stable.},
 pages = {1949--1956},
 title = {Comprehensive visualization of detonation-diffraction structures and sizes in unstable and stable mixtures},
 volume = {34},
 year = {2013}
}