On compressible fluid flows of Forchheimer-type in rotating heterogeneous porous media
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866911717342052352 |
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| author | Celik, Emine Hoang, Luan Kieu, Thinh |
| author_facet | Celik, Emine Hoang, Luan Kieu, Thinh |
| contents | We study the dynamics of compressible fluids in rotating heterogeneous porous media. The fluid flow is of {F}orchheimer-type and is subject to a mixed mass and volumetric flux boundary condition. The governing equations are reduced to a nonlinear partial differential equation for the pseudo-pressure. This parabolic-typed equation can be degenerate and/or singular in the spatial variables, the unknown and its gradient. We establish the $L^α$-estimate for the solutions, for any positive number $α$, in terms of the initial and boundary data and the angular speed of rotation. It requires new elliptic and parabolic Sobolev inequalities and trace theorem with multiple weights that are suitable to the nonlinear structure of the equation. The $L^\infty$-estimate is then obtained without imposing any conditions on the $L^\infty$-norms of the weights and the initial and boundary data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_13959 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On compressible fluid flows of Forchheimer-type in rotating heterogeneous porous media Celik, Emine Hoang, Luan Kieu, Thinh Analysis of PDEs 35Q35, 76S05, 35B45, 35K20, 35K65, 35K67 We study the dynamics of compressible fluids in rotating heterogeneous porous media. The fluid flow is of {F}orchheimer-type and is subject to a mixed mass and volumetric flux boundary condition. The governing equations are reduced to a nonlinear partial differential equation for the pseudo-pressure. This parabolic-typed equation can be degenerate and/or singular in the spatial variables, the unknown and its gradient. We establish the $L^α$-estimate for the solutions, for any positive number $α$, in terms of the initial and boundary data and the angular speed of rotation. It requires new elliptic and parabolic Sobolev inequalities and trace theorem with multiple weights that are suitable to the nonlinear structure of the equation. The $L^\infty$-estimate is then obtained without imposing any conditions on the $L^\infty$-norms of the weights and the initial and boundary data. |
| title | On compressible fluid flows of Forchheimer-type in rotating heterogeneous porous media |
| topic | Analysis of PDEs 35Q35, 76S05, 35B45, 35K20, 35K65, 35K67 |
| url | https://arxiv.org/abs/2512.13959 |