Finite difference schemes for a size structured coagulation-fragmentation model in the space of Radon measures

Autor: Azmy S Ackleh, Rainey Lyons, Nicolas Saintier
Rok vydání: 2022
Předmět:
Zdroj: IMA Journal of Numerical Analysis.
ISSN: 1464-3642
0272-4979
DOI: 10.1093/imanum/drac071
Popis: We study a size-structured coagulation-fragmentation model formulated in the space of Radon measures. We reformulate this model as a mass conservation law on this space and establish its well-posedness. We develop and compare multiple finite difference schemes. In particular, we develop a fully explicit scheme and a semi-implicit scheme for the structured coagulation-fragmentation model, and we develop an explicit scheme based on the conservation law formulation. We prove convergence for each scheme and test the schemes against multiple well-known examples. We analyze and compare important properties of each scheme, such as mass conservation, order of convergence and computation time.
Databáze: OpenAIRE