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首页> 外文期刊>JSME International Journal. Series B, Fluids and Thermal Engineering >Measurement of Ambient Air Motion of D.I. Gasoline Spray by LIF-PIV
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Measurement of Ambient Air Motion of D.I. Gasoline Spray by LIF-PIV

机译：D.I.的周围空气运动的测量LIF-PIV汽油喷雾

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Ambient air velocity distributions in and around a D.I. gasoline spray were measured using a combination of LIF and PIV techniques. A rhodamine and water solution was injected into ambient air to disperse the fine fluorescent liquid particles used as tracers. A fuel spray was injected into the fluorescent tracer cloud and was illuminated by an Nd: YAG laser light sheet (532nm). The scattered light from the spray droplets and tracers was cut off by a high-pass filter (>560nm). As the fluorescence (> 600nm) was transmitted through the high -pass filter, the tracer images were captured using a CCD camera and the ambient air velocity distribution could be obtained by PIV based on the images. This technique was applied to a D.I. gasoline spray. The ambient air flowed up around the spray and entered into the tail of the spray. Furthermore, the relative velocity between the spray and ambient air was investigated.
机译：D.I.中及其周围的环境空气速度分布使用LIF和PIV技术组合测量汽油喷雾。将罗丹明和水溶液注入到环境空气中，以分散用作示踪剂的荧光粉微粒。将燃料喷雾注入荧光示踪剂云中，并用Nd：YAG激光片（532nm）照射。来自喷雾液滴和示踪剂的散射光被高通滤光片（> 560nm）截断。当荧光（> 600nm）通过高通滤光片时，示踪剂图像使用CCD摄像机捕获，并且可以通过PIV根据图像获得环境空气速度分布。这项技术应用于D.I.汽油喷雾。环境空气在喷雾周围流动，并进入喷雾尾部。此外，研究了喷雾和周围空气之间的相对速度。

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