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Numerical methods and analysis for a class of fractional advection-dispersion models. (English) Zbl 1268.65124
Summary: A class of fractional advection-dispersion models (FADMs) is considered. These models include five fractional advection-dispersion models, i.e., the time FADM, the mobile/immobile time FADM with a time Caputo fractional derivative $0<\gamma<1$, the space FADM with two sides Riemann-Liouville derivatives, the time-space FADM and the time fractional advection-diffusion-wave model with damping with index $1<\gamma<2$. These equations can be used to simulate the regional-scale anomalous dispersion with heavy tails. We propose computationally effective implicit numerical methods for these FADMs. The stability and convergence of the implicit numerical methods are analysed and compared systematically. Finally, some results are given to demonstrate the effectiveness of theoretical analysis.

##### MSC:
 65M12 Stability and convergence of numerical methods (IVP of PDE) 35R11 Fractional partial differential equations 45K05 Integro-partial differential equations
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