Two-dimensional vertical analysis of dam-break flow

• Autorzy: Zima P.
• Języki publikacji: EN

Abstrakty

EN

The paper concerns mathematical modeling of free surface open-channel water flow. Two-dimensional vertical Reynolds-averaged Navier-Stokes equations were used to simulate the flow. They were solved with the SIMPLE algorithm of the finite difference method using the Marker and Cell technique to trace free surface movement. The dam-break flow (water column collapse) problem on a horizontal and frictionless bottom was investigated as a test case. The mechanics of dam-break flow for wet and dry bed conditions was analyzed on the basis of numerical simulations. The obtained results are shown for varying head of water in the downstream channel. The possibility of using the shallow-water equations and the RANS model to simulate rapidly varied flows is discussed.

Słowa kluczowe

EN

mathematical modeling; Reynolds-averaged Navier-Stokes equations; rapidly varied free surface flow; dam-break flow

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2007
• Tom: Vol. 11, No 4
• Strony: 315--328
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Zima P.

• Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Narutowicza 11/12, 80-952 Gdansk, Poland,

Bibliografia

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