Spatiotemporal distribution of liquid mass in transient sprays using X-ray tomography from a laser-driven plasma accelerator
Löfquist E, Lehnert B, Gustafsson C, Angella A, Persson A, Berrocal E, Lundh O (2025)
Publication Type: Journal article
Publication year: 2025
Journal
Book Volume: 37
Article Number: 093343
Journal Issue: 9
DOI: 10.1063/5.0280407
Abstract
We present time-resolved three-dimensional measurements of the averaged liquid mass distribution generated by the Spray M from the Engine Combustion Network. The operating condition corresponds to a non-reacting early injection case for spray-guided gasoline injection during the first 200 μs. Few-femtosecond X-rays from a compact laser wakefield accelerator, enable quantitative spray measurements, from the nozzle tip to the spray front. Spray cone angles, plume directionality, and mass redistribution are quantified with spatial resolution of the order of 15 μm. Results show that the eight plumes exhibit a similar spatial distribution of liquid volume fraction. In addition, the distribution of liquid volume fraction changes over time, with maxima starting from the external periphery and moving toward the internal periphery of the plumes. This experiment demonstrates the possibility of studying the time-resolved three-dimensional liquid mass distribution of challenging multi-hole transient sprays running at high injection pressures. This opens new opportunities for validating spray simulations and advancing fuel injection technologies in next-generation combustion systems.
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APA:
Löfquist, E., Lehnert, B., Gustafsson, C., Angella, A., Persson, A., Berrocal, E., & Lundh, O. (2025). Spatiotemporal distribution of liquid mass in transient sprays using X-ray tomography from a laser-driven plasma accelerator. Physics of Fluids, 37(9). https://doi.org/10.1063/5.0280407
MLA:
Löfquist, E., et al. "Spatiotemporal distribution of liquid mass in transient sprays using X-ray tomography from a laser-driven plasma accelerator." Physics of Fluids 37.9 (2025).
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