Experimental and numerical investigation of non-submerged flow under a sluice gate

• Autorzy: Kiczko A. , Kubrak J. , Kubrak E.

Warianty tytułu

PL

Doświadczalna i numeryczna analiza niezatopionego wypływu spod zasuwy

• Języki publikacji: EN

Abstrakty

EN

The problem of sluice gate flow is analyzed using two models: a simplified one, derived according to the concept of the Potential Field (PF), and a more complex form, based on the Reynolds Average Navier-Stokes (RANS) equations. The numerical solution is compared with experimental data, including measurements performed by authors and results acquired from literature. Despite its simplicity, the PF model provides a satisfactory agreement with the measurements. The slightly worse performance of the RANS model comes from an overestimation of energy losses.

PL

Niezatopiony wypływ wody spod zasuwy opisano dwoma modelami: uproszczonym, wyprowadzonym na podstawie teorii płaskiego przepływu potencjalnego (PF), i modelem o większym stopniu złożoności, bazującym na uśrednieniu Reynoldsa równań Naviera-Stokesa (RANS). Wyniki obliczeń przepustowości scharakteryzowano współczynnikami wydatku i porównano z wynikami własnych pomiarów hydraulicznych oraz podawanymi w literaturze. Współczynniki wydatku uzyskane z modelu PF są zbliżone do wyników badań eksperymentalnych. Nieco większe różnice wartości współczynników wydatku uzyskano z obliczeń modelem RANS. Wynika to z przeszacowania strat energii strumienia wody.

Słowa kluczowe

EN

sluice gate; potential flow; flow model; contraction coefficient; discharge coefficient; computational fluid dynamics; numerical investigation; experimental investigation

• Wydawca: -
• Czasopismo: Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
• Rocznik: 2015
• Tom: 47
• Numer: 3
• Opis fizyczny: p.187-201,fig.,ref.

Twórcy

autor

Kiczko A.

• Department of Hydraulic Engineering, Warsaw University of Life Sciences – SGGW, Nowoursynowska 166, 02-787 Warsaw, Poland

autor

Kubrak J.

• Department of Hydraulic Engineering, Warsaw University of Life Sciences – SGGW, Nowoursynowska 166, 02-787 Warsaw, Poland

autor

Kubrak E.

• Laboratory – Water Center, Warsaw University of Life Sciences – SGGW, Nowoursynowska 166, 02-787 Warsaw, Poland

Bibliografia

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Identyfikatory

DOI

10.1515/sggw-2015-0024