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Kinetic-fluid derivation and mathematical analysis of a nonlocal cross-diffusion–fluid system.
- Source :
-
Applied Mathematical Modelling . Jun2020, Vol. 82, p379-408. 30p. - Publication Year :
- 2020
-
Abstract
- • Derivation of a new nonlocal kinetic-fluid model by use the micro-macro decomposition method. • Proof of the existence of weak solutions for the proposed system. • Performance of the proposed schemes during the transition from the kinetic regime to the macroscopic regime. • Demonstration of the phenomenon of pattern formation. In this article we propose a nonlocal cross-diffusion–fluid system describing the dynamics of multiple interacting populations living in a Newtonian fluid. First, we derive our nonlocal cross-diffusion–fluid system from a nonlocal kinetic-fluid model by the micro-macro decomposition method. Second, we prove the existence of weak solutions for the proposed system by applying the nonlinear Galerkin method with a priori estimates and compactness arguments. On the basis of micro-macro decomposition, we propose and develop an asymptotic-preserving numerical scheme. Finally, we discuss the computational results for the proposed system. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0307904X
- Volume :
- 82
- Database :
- Academic Search Index
- Journal :
- Applied Mathematical Modelling
- Publication Type :
- Academic Journal
- Accession number :
- 142335199
- Full Text :
- https://doi.org/10.1016/j.apm.2019.11.036