Conditions governing the use of approximations for the Saint-Vénant equations for shallow surface water flow
1983; Elsevier BV; Volume: 60; Issue: 1-4 Linguagem: Inglês
10.1016/0022-1694(83)90013-6
ISSN1879-2707
Autores Tópico(s)Tropical and Extratropical Cyclones Research
ResumoThe solutions of the Saint-Vénant equations are compared with those of the kinematic, diffusion and gravity wave approximations, for a range of constant Froudé and kinematic wave numbers, with two different lower boundary conditions: (1) critical flow; and (2) zero depth gradient. For each lower boundary condition, zones are defined in the F0,k-field in which either kinematic, diffusion or gravity wave solutions may be used to approximate the full Saint-Vénant solutions.
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