In: Journal of Hydrology and Hydromechanics, vol. 67, no. 3
Yufang Ni - Zhixian Cao - Qingquan Liu
Detaily:
Rok, strany: 2019, 252 - 259
Kľúčové slová:
2D shallow-water equations; Steep slopes; Dam-break flows; Rectangular Cartesian coordinate system;
Global coordinates.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
O článku:
A 2D hydrodynamic (labeled as CAR) model has been proposed in a rectangular Cartesian coordinate system
with two axes within the horizontal plane and one axis along the vertical direction (global coordinates), considering the
effects of bed slope on both pressure distribution and bed shear stresses. The CAR model satisfactorily reproduces the
analytical solutions of dam-break flow over a steep slope, while the traditional Saint-Venant Equations (labeled as SVE)
significantly overestimate the flow velocity. For flood events with long duration and large mean slope, the CAR and the
SVE models present distinguishable discrepancies. Therefore, the proposed CAR model is recommended for applications
to real floods for its facility of extending from 1D to 2D version and ability to model shallow-water flows on steep
slopes.
Ako citovať:
ISO 690:
Ni, Y., Cao, Z., Liu, Q. 2019. Mathematical modeling of shallow-water flows on steep slopes. In Journal of Hydrology and Hydromechanics, vol. 67, no.3, pp. 252-259. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2019-0012
APA:
Ni, Y., Cao, Z., Liu, Q. (2019). Mathematical modeling of shallow-water flows on steep slopes. Journal of Hydrology and Hydromechanics, 67(3), 252-259. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2019-0012
O vydaní: