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Effect of Equivalence Ratio and Turbulence Fluctuations on the Propagation of Detonations

机译:当量比和湍流波动对爆轰传播的影响

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摘要

The effect of turbulence and inhomogeneities on the propagation of a 3-dimensional detonation is studied in a practical configuration. An in-house Navier-Stokes solver using detailed H_2-O_2 chemistry is first validated on known test-cases, then used on the target calculation. The geometry chosen is that of a linearized RDE with non premixed injection, operating at low initial pressure and temperature. The results are analyzed with an emphasis on two important metrics describing the nature of the detonation, shock front velocity and induction length.
机译:在实际配置中研究了湍流和不均匀性对三维爆轰传播的影响。首先在已知测试用例上验证使用详细H_2-O_2化学性质的内部Navier-Stokes求解器,然后将其用于目标计算。选择的几何形状是具有非预混合喷射的线性化RDE的几何形状,在较低的初始压力和温度下运行。分析结果的重点是描述爆轰性质的两个重要指标,即激波前沿速度和感应长度。

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