Geodesic
Influence of numerical diffusion on the growth rate of viscous fingers in~the~numerical implementation of~the~Peaceman model by the finite volume method
Contemporary Mathematics. Fundamental Directions, Differential and functional differential equations, Tome 68 (2022) no. 4, pp. 553-563

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A numerical model of oil displacement by a mixture of water and polymer based on the Peaceman model is considered. Numerical experiments were carried out using the $\rm DuMu^x$ package, which is a software library designed for modeling nonstationary hydrodynamic problems in porous media. The software package uses the vertex-centered variant of finite volume method. The effect of diffusion on the growth rate of “viscous fingers” has been studied. The dependencies of the leading front velocity on the value of model diffusion are obtained for three viscosity models. It is shown that the effect of numerical diffusion on the growth rate of “viscous fingers” imposes limitations on calculations for small values of model diffusion.
Keywords: mathematical modeling, Peaceman model, viscous fingers, porous media, $\rm DuMu^x$ package, numerical diffusion. 
@article{CMFD_2022_68_4_a0,
     author = {D. E. Apushkinskaya and G. G. Lazareva and V. A. Okishev},
     title = {Influence of numerical diffusion on the growth rate of viscous fingers in~the~numerical implementation {of~the~Peaceman} model by the finite volume method},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {553--563},
     publisher = {mathdoc},
     volume = {68},
     number = {4},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2022_68_4_a0/}
}
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D. E. Apushkinskaya; G. G. Lazareva; V. A. Okishev. Influence of numerical diffusion on the growth rate of viscous fingers in~the~numerical implementation of~the~Peaceman model by the finite volume method. Contemporary Mathematics. Fundamental Directions, Differential and functional differential equations, Tome 68 (2022) no. 4, pp. 553-563. http://geodesic.mathdoc.fr/item/CMFD_2022_68_4_a0/