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基于电弧放电等离子体热阻塞机理,数值模拟等离子体产生于超燃燃烧室横向喷流上游时燃烧室流动过程,分析激励器位置与激励强度两个关键因素对等离子体作用效果的影响。结果显示:激励器开启下等离子体区域形成一高温虚拟凸起,诱导出斜激波;随着激励位置从燃烧室入口向喷流移动,喷流上游回流区x向尺寸呈先增后减趋势,在最优激励位置激励时,分离激波强度显著降低。
Based on the mechanism of arc plasma discharge thermal blockage, a numerical simulation of the plasma flow in the combustion chamber upstream of the transverse jet flow in the super-combustion chamber was performed. The effects of the actuator position and excitation intensity on the plasma effect were analyzed. The results show that when the exciter turns on the plasma region, a high-temperature virtual protuberance is formed to induce the oblique shock wave. As the excitation position moves from the combustion chamber inlet to the jet, the size of x upstream of the jet flows increases first and then decreases When excited at the optimal excitation position, the separation shock intensity is significantly reduced.