Boundary problem for equations of steady gradually varied flow in open channels

• Autorzy: Szymkiewicz R.
• Języki publikacji: EN

Abstrakty

EN

In this paper the problem of solution of ordinary differential equations describing a steady, gradually varied flow is discussed. It is shown that, apart from the initial problem usually solved for open channels, the formulation of the boundary problem is necessary when water levels are imposed at ends of channel. This approach is the mathematically correct formulation of the solution problem for steady, gradually varied flow equations. It enables us to determine directly the water profile and discharge for a single channel, as well as for channel network, instead of the trial and error method usually used. Moreover the formulation of boundary problem with respect to the Manning coefficient and lateral inflow is presented. To solve the listed problems the finite differences method is used.

Słowa kluczowe

EN

differential equations; steady flow; gradually varied flow; open channels

• Wydawca: Institute of Hydro-Engineering of Polish Academy of Sciences
• Czasopismo: Archives of Hydro-Engineering and Environmental Mechanics
• Rocznik: 2001
• Tom: Vol. 48, nr 4
• Strony: 23--37
• Opis fizyczny: Bibliogr. 10 poz., il.

Twórcy

autor

Szymkiewicz R.

• Faculty of Hydro and Environmental Engineering, Technical University of Gdańsk ul. Narutowicza 11/12, 80-952 Gdańsk, Poland