Balanced semi-implicit Roe scheme for open channel fl ow equations (CROSBI ID 144668)
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Podaci o odgovornosti
Bojan Crnković, Lado Kranjčević, Nelida Črnjarić-Žic
engleski
Balanced semi-implicit Roe scheme for open channel fl ow equations
In this paper we present an extension of balanced upwind explicit fi nite volume schemes designed in [12] to semi-implicit ones. Particularly, those schemes are applied to open-channel fl ows with general geometries and we verify the exact conservation property (C-property). We present the algorithm, the proof of exact C-property and results for several test cases. Also, we test and compare balanced semi-implicit with the explicit schemes on standard test cases and on cases involving friction, non-uniform bed slopes and strong channel width variations.
Open-channel fl ow equations; Semi-implicit schemes; Upwind schemes; Exact conservation property; Hyperbolic balance law
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Podaci o izdanju
54 (2)
2008.
245-258
objavljeno
0430-3202
1827-1510
10.1007/s11565-008-0053-1