Structural changes in a supersonic flow in a variable-section channels with axial injection of kerosene induced by the action of a jet generating a throttling effect are numerically simulated. Reynolds-averaged Navier–Stokes equations closed by the $$k$$ – $$\varepsilon$$ turbulence model are solved. Kerosene combustion is modeled by equations of simplified chemical kinetics. The evolution of the processes in the channel is analyzed numerically and analytically for different types of the fuel (hydrogen, ethylene, and kerosene), and comparisons with experimental data are performed. It is found that high-intensity gas-dynamic pulses have to be used to form a transonic region in the case where kerosene is used as a fuel.

中文翻译：

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节流喷射器作用下超音速流中煤油燃烧的模拟

数值模拟了由产生节流效应的射流作用引起的煤油轴向喷射的可变截面通道中超音速流动的结构变化。求解由 $$k$$ – $$\varepsilon$$ 湍流模型封闭的雷诺平均 Navier-Stokes 方程。煤油燃烧由简化的化学动力学方程建模。对于不同类型的燃料（氢气、乙烯和煤油），通道中过程的演变进行了数值分析和解析，并与实验数据进行了比较。发现在使用煤油作为燃料的情况下，必须使用高强度气体动力脉冲来形成跨音速区域。