Journal
SCIENCE ADVANCES
Volume 8, Issue 17, Pages -Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.abm7947
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Funding
- Co-Optimization of Fuels & Engines (Co-Optima) project - U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE) under the Bioenergy Technologies Office (BETO)
- Vehicle Technologies Office (VTO) program [DE-EE0007983]
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences through Argonne National Laboratory [DE-AC02-06CH11357]
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Synchrotron x-ray fluorescence is a useful tool for measuring temperatures in optically dense gases, especially in complex systems where physical and chemical processes are closely connected. The experiments provide benchmark data for evaluating computational fluid dynamics models and also identify potential sources of uncertainties in the measurements, allowing for future improvements.
Synchrotron x-ray fluorescence has been used to measure temperatures in optically dense gases where traditional methods would fail. These data provide a benchmark for stringent tests of computational fluid dynamics models for complex systems where physical and chemical processes are intimately linked. The experiments measured krypton number densities in a sooting, atmospheric pressure, nonpremixed coflow flame that is widely used in combustion research. The experiments not only form targets for the models, but the simulations also identify potential sources of uncertainties in the measurements, allowing for future improvements.
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