Simultaneous Measurements of Reactive Scalar and Velocity in a Planar Liquid Jet with a Second-Oder Chemical Reaction
Simultaneous Measurements of Reactive Scalar and Velocity in a Planar Liquid Jet with a Second-Oder Chemical Reaction
复制标题
通过二阶化学反应同时测量平面液体射流中的反应标量和速度
DOI：
10.1007/s00348-012-1365-6
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发表时间：
2012
影响因子：
2.4
通讯作者：
Tomoaki Watanabe
中科院分区：
文献类型：
--
作者：
Takehiro Yamamoto;Syuya Ueda;Tomoaki Watanabe
本文提出了一种新的实验方法，用于同时测量具有化学反应的湍流液体流中的速度和浓度。为了同时测量，我们开发了一个组合探头组成的I型热膜探头和光纤探头的光吸收光谱法的基础上。在具有二级化学反应的湍流平面液体射流中，利用组合探针测量了所有反应组分的流向速度和浓度。反应性组分的湍流质量通量估计从同步测量。结果表明，化学反应对反应物组分在射流出口附近的湍流质量通量的影响与其在其他区域的影响不同，产物组分在射流出口附近的湍流质量通量为负值，在其他区域为正值。
This paper presents a new experimental approach for simultaneous measurements of velocity and concentration in a turbulent liquid flow with a chemical reaction. For the simultaneous measurements, we developed a combined probe consisting of an I-type hot-film probe and an optical fiber probe based on the light absorption spectrometric method. In a turbulent planar liquid jet with a second-order chemical reaction, streamwise velocity and concentrations of all reactive species are measured by the combined probe. The turbulent mass fluxes of the reactive species are estimated from the simultaneous measurements. The results show that the influence of the chemical reaction on the turbulent mass flux of the reactant species near the jet exit is different from its influence in other regions, and the turbulent mass flux of the product species has a negative value near the jet exit and a positive value in other regions.