DNS benchmark reveals that RANS underpredicts hydrogen mixing in crossflow due to overestimated turbulent Schmidt number and invalid isotropic diffusivity assumption, while LES matches DNS closely.
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Turbulent mixing of a hydrogen jet in crossflow: direct numerical simulation and model assessment
DNS benchmark reveals that RANS underpredicts hydrogen mixing in crossflow due to overestimated turbulent Schmidt number and invalid isotropic diffusivity assumption, while LES matches DNS closely.