Convergence and error analysis for pure collisional breakage equation
arXiv (Cornell University)(2022)
摘要
Collisional breakage in the particulate process has a lot of recent curiosity. We study the pure collisional breakage equation which is nonlinear in nature accompanied by locally bounded breakage kernel and collision kernel. The continuous equation is discretized using a finite volume scheme (FVS) and the weak convergence of the approximated solution towards the exact solution is analyzed for non-uniform mesh. The idea of the analysis is based on the weak $L^1$ compactness and a suitable stable condition on time step is introduced. Furthermore, theoretical error analysis is developed for a uniform mesh when kernels are taken in $W_{loc}^{1,\infty}$ space. The scheme is shown to be first-order convergent which is verified numerically for three test examples of the kernels.
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关键词
pure collisional breakage equation,error analysis
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