Novel color-coded pulse-burst microscopy system for ultra-high spatially and temporally resolved imaging of primary atomization in engine-relevant diesel sprays

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MAASSEN-THESIS-2020.pdf (5.42 MB)
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Maassen, Kenneth Frank
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http://hdl.handle.net/1853/65153
Abstract
Primary atomization, the process of forming droplets from a high-pressure jet, is not a well understood phenomena because it is difficult to study experimentally. Primary atomization occurs on the micron scale over the course of nanoseconds. While numerous experiments have attempted to image primary atomization, they all lack the spatial and temporal resolution to visualize droplet formation. To study droplet formation in primary atomization, a high-performance Color-Coded Pulse-Burst (CCPB) Microscopy system was designed and implemented. This is a novel experimental method for obtaining high-speed (20 Million fps), high-resolution (24MP, 1.2 μm resolving power) images. These images are used to study the evolution of fluid structures in an engine-relevant spray and evaluate assumptions in models of primary atomization.
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2020-03-13
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