• Corpus ID: 103109386

Rayleigh fractionation in high-Rayleigh-number solutal convection in porous media

@article{Wen2018RayleighFI,
  title={Rayleigh fractionation in high-Rayleigh-number solutal convection in porous media},
  author={Baole Wen and Marc A. Hesse},
  journal={arXiv: Fluid Dynamics},
  year={2018}
}
We study the fractionation of two components between a well-mixed gas and a saturated convecting porous layer. Motivated by geological carbon dioxide (CO$_2$) storage we assume that convection is driven only by the dissolved concentration of the first component, while the second acts as a tracer with increased diffusivity. Direct numerical simulations for convection at high Rayleigh numbers reveal that the partitioning of the components, in general, does not follow a Rayleigh fractionation… 
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