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Jets in Crossflow - Effects of Heat Release

机译:射流横流-放热的影响

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Detailed measurements of the velocity field in the symmetry plane of two jets and two jet flames in crossflow are obtained using Particle Image Velocimetry. The jets issue into a wind tunnel at density-weighted jet-to-cross flow velocity ratios r - 10 and r = 21, with corresponding Reynolds numbers 6,000 and 12,800. The changes in the flow due to the effects of heat release are examined and ensemble statistics of the velocity field are derived from these datasets. Simultaneous Planar Laser-Induced Fluorescence imaging of the OH radical is performed in selected regions of the flames. Results suggests that flame/flow interaction is strong near the lifted flame base, but increasingly weaker further downstream.
机译:使用粒子图像测速技术获得了两个射流和两个射流火焰在错流中的对称平面内速度场的详细测量结果。射流以密度加权射流与横流的流速比r-10和r = 21进入风洞,雷诺数分别为6,000和12,800。检查了由于放热作用引起的流量变化,并从这些数据集中得出了速度场的整体统计数据。在火焰的选定区域中进行OH自由基的同时平面激光诱导荧光成像。结果表明,在升起的火焰底部附近,火焰/流动相互作用较强,但在下游更弱。

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