Axisymmetric gravity currents in anisotropic porous media

@article{Benham2022AxisymmetricGC,
  title={Axisymmetric gravity currents in anisotropic porous media},
  author={Graham P. Benham and Jerome A. Neufeld and Andrew W. Woods},
  journal={Journal of Fluid Mechanics},
  year={2022},
  volume={952}
}
Abstract We explore the motion of an axisymmetric gravity current in an anisotropic porous medium in which the horizontal permeability is larger than the vertical permeability. It is well known that the classical axisymmetric gravity current supplied by a constant point source of fluid has an unphysical singularity near the origin. We address this by considering a pressure-dominated region near the origin which allows for vertical flow from the source, such that the current remains of finite… 

Buoyancy segregation suppresses viscous fingering in horizontal displacements in a porous layer

Abstract We consider the axisymmetric displacement of an ambient fluid by a second input fluid of lower density and lower viscosity in a horizontal porous layer. If the two fluids have been

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