锁模旋转爆轰波的实验和模型方程
Mode-Locked Rotating Detonation Waves: Experiments and a Model Equation
摘要：
通过对旋转爆震发动机燃烧室的直接观测，可以提取爆震波的运动学特征。这些记录表现出丰富的不稳定性和分叉所产生的相干波前和全球增益动态的相互作用。我们开发了一个模型，所观察到的动态重铸的Majda爆炸模拟作为一个autowave。解前沿成为引擎的吸引子;即，锁模旋转爆震波我们发现，爆轰能量释放与耗散和增益恢复竞争，产生所观察到的动力学和分叉结构的驱动耗散系统，如锁模激光器。
英文摘要：
Direct observation of a Rotating Detonation Engine combustion chamber has enabled the extraction of the kinematics of its detonation waves. These records exhibit a rich set of instabilities and bifurcations arising from the interaction of coherent wave fronts and global gain dynamics. We develop a model of the observed dynamics by recasting the Majda detonation analog as an autowave. The solution fronts become attractors of the engine; i.e., mode-locked rotating detonation waves. We find that detonative energy release competes with dissipation and gain recovery to produce the observed dynamics and a bifurcation structure common to driven-dissipative systems, such as mode-locked lasers.
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