| Citation: | CAO Liwen, WANG Ke, HU Longyu, et al. Experimental study on the propagation characteristics of rotatingdetonation waves in curved channels under the influence of axial lateral expansion[J]. Journal of Aerospace Power, 2025, 40（4）：20240502 doi: 10.13224/j.cnki.jasp.20240502
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To clarify the influence of axial lateral expansion on the propagation characteristics of detonation waves in curved channels, experimental study was conducted in confined and semi-confined curved channels with an inner radius of 45 mm and the mixture heights of 10 mm, 20 mm, and 30 mm. Ethylene and a nitrogen-oxygen mixture with a dilution ratio of 0.5 were utilized as fuel and oxidizer, respectively. The effects of lateral expansion on the peak pressure, the propagation velocity, and the propagation modes of detonation waves at different equivalence ratios were investigated. The results indicated that under the influence of lateral expansion, the deficits of wave velocity and peak pressure increased, especially under both fuel-lean and fuel-rich conditions. As the mixture height decreased, the deficits were further amplified. Based on the
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CAO Liwen, WANG Ke, XU Ziyang, et al. Experimental study on the propagation characteristics of stable detonation waves in curved channels[J/OL]. Acta Aeronautica et Astronautica Sinica, (2024-04-26)[2024-06-07]. http://kns.cnki.net/kcms/detail/11.1929.V.20240425.1725.012.html. (in Chinese)
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