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https://open.uns.ac.rs/handle/123456789/8863
Nаziv: | Advection step in the split-operator approach applied to river modeling | Аutоri: | Isic Mirjana Horvat Zoltan Spasojevic Miodrag |
Dаtum izdаvаnjа: | 10-јун-2013 | Čаsоpis: | Applied Numerical Mathematics | Sažetak: | The split-operator approach proposes to divide the numerical solution of the governing flow and constituent transport equations into a series of successive steps, one of them being the numerically most challenging advection step. This paper presents tests of characteristics and finite difference methods used in the numerical solution of one-dimensional linear and nonlinear advection equations that describe the transport and flow advection steps, thus demonstrating their accuracy, oscillations and damping features. The studied methods were incorporated into the split-operator approach and evaluated as a part of the complete solution, which led to the development of numerical models implementing an algorithm that can endure larger time steps without losing much accuracy. This algorithm was tested on both one- and two-dimensional examples, for complex computational domains that predominate in natural watercourses. © 2013 IMACS. | URI: | https://open.uns.ac.rs/handle/123456789/8863 | ISSN: | 01689274 | DOI: | 10.1016/j.apnum.2013.05.001 |
Nаlаzi sе u kоlеkciјаmа: | GF Publikacije/Publications |
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