Robust Volume-Based Approach for the Turbulent Mixing Efficiency
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This paper considers the mixture fraction which is often used to quantify the turbulent mixing efficiency in fluid engineering devices. We contrast a volume-based approach, where the mixture fraction is quantified directly using the volume bounded by the interface between mixed versus pure fluid, to a surface-based approach that requires area integrals of all mixed-fluid interfaces. Experimentally, we investigate the resolution-scale robustness of the volume-based approach compared to the small-scale sensitivity of the surface-based approach. The difference in robustness between these approaches has implications for examining, modeling, and optimizing the turbulent mixing efficiency.
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2014 ◽
Vol 44
(8)
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pp. 2164-2175
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2021 ◽
Vol 54
(1)
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2020 ◽
Vol 6
(1)
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pp. 1-25
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2018 ◽
Vol 76
(1)
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pp. 113-133
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1986 ◽
Vol 170
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pp. 83-112
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