This study examines the effects of an additional transmission chamber on a pulsed jet in crossflow using experimental and Large-eddy simulation methods, with a focus on the structural and mixing characteristics of the flow. Three pulse frequencies are selected (f = 20 Hz, 50 Hz, and 100 Hz), and the results of the model with an additional transmission chamber are compared with the round pipe model. The results show that the additional transmission chamber enhances jet penetration, diffusion, and mixing uniformity, particularly at higher pulse frequencies. The additional transmission chamber also alters the exit velocity profile, increasing peak velocity and promoting greater deflection under crossflow. These findings highlight the potential of transmission chambers to optimize pulsed jet performance in applications requiring effective mixing and penetration.

中文翻译：

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附加传输室对横流中脉冲射流流动动力学的影响


本研究使用实验和大涡模拟方法检查了额外的传输室对交叉流中脉冲射流的影响，重点是流动的结构和混合特性。选择了三个脉冲频率（f = 20 Hz、50 Hz 和 100 Hz），并将具有附加传输室的模型结果与圆管模型进行了比较。结果表明，额外的传输室增强了射流穿透、扩散和混合均匀性，尤其是在较高的脉冲频率下。额外的传输室还改变了出口速度曲线，增加了峰值速度，并在错流下促进了更大的偏转。这些发现突出了传输室在需要有效混合和渗透的应用中优化脉冲射流性能的潜力。