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Development of In-Cylinder 2D Dropsize Measurement Using LIEF-Mie Scattering in a Direct Injection Engine
Published October 22, 2008 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Autumn Conference
The paper presents a measurement technique for visualizing the two-dimensional distribution of the in-cylinder sauter mean diameter (SMD) and analyzing the effect of the SMD distribution to mixture formation on direct injection (DI) engine. First, a technique for visualizing the SMD distribution based on the SMD dependence of fluorescence and Mie Scattering ratio is described.
As the next step, this method was applied to optical engine in two engine conditions of different engine speeds. The correlation between the SMD distribution and mixture formation was shown experimentally by changing in-cylinder gas flow.