Measurement of ambient air motion of D.I. gasoline spray by LIF-PIV

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Abstract

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.

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Yamakawa, M., Isshiki, S., Yoshizaki, T., & Nishida, K. (2003). Measurement of ambient air motion of D.I. gasoline spray by LIF-PIV. JSME International Journal, Series B: Fluids and Thermal Engineering, 46(1), 25–30. https://doi.org/10.1299/jsmeb.46.25

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