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On the erosion due to inclined jets

100%

Minatti L., Paris E., Solari L.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

2010

tom 42

nr 1

187-196

Some preliminary experiments and studies regarding scour processes on a mobile bed caused by inclined jets issuing from a sluice gate are presented. Tests with submerged tailwater conditions have been carried out using different fl ow and geometric conditions. The investigated experimental conditions included different jet Froude numbers, inclinations and tailwater conditions. The bed configuration has been measured during the whole scour hole evolution process until the achievement of a dynamic steady state, where sediment motion was still possible even though it did not allow for any persistent change in the scour and ridge shapes anymore. On the basis of the observed sediment motion, two different patterns of fl ow seem to develop under the investigated conditions: one where the main fl ow remains attached to the bottom of the channel and another where it oscillates between the aforementioned configuration and a surface jet. Some relevant parameters have been identified and used to plot graphs showing their correlation and trends.

Downwelling-related mesoscale motions at the entrance to the Gulf of Finland: observations and diagnosis

72%

Laanemets J., Pavelson J., Lips U., Kononen K.

Oceanological and Hydrobiological Studies

2005

tom 34

nr 2

Ograniczanie wyników

1 Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

1 Oceanological and Hydrobiological Studies

1 Kononen K.

1 Laanemets J.

1 Lips U.

1 Minatti L.

1 Paris E.

1 Pavelson J.

1 Solari L.

1 2010

1 2005

Wyniki wyszukiwania

On the erosion due to inclined jets

Downwelling-related mesoscale motions at the entrance to the Gulf of Finland: observations and diagnosis