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Investigation of Local Scour in Cohesionless Sediments Using a Tunnel-Model

M. Buchko / P. Kolkman / K. Pilarczyk

Two dimensional sand erosion tests in a closed water tunnel (velocities up to 2 m/s) produced a scour hole downstream a sill or a flat bottom protection, the slope of the scour hole being independent of flow velocity, partially dependent on scale and wholly dependent on grain size and gradation and sill geometry. The tractive forces of single grains and liquefaction are the mechanisms scour.

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Investigation of Local Scour in Cohesionless Sediments Using a Tunnel-Model

M. Buchko / P. Kolkman / K. Pilarczyk

Two dimensional sand erosion tests in a closed water tunnel (velocities up to 2 m/s) produced a scour hole downstream a sill or a flat bottom protection, the slope of the scour hole being independent of flow velocity, partially dependent on scale and wholly dependent on grain size and gradation and sill geometry. The tractive forces of single grains and liquefaction are the mechanisms scour.

Investigation of Local Scour in Cohesionless Sediments Using a Tunnel-Model

M. Buchko / P. Kolkman / K. Pilarczyk

Two dimensional sand erosion tests in a closed water tunnel (velocities up to 2 m/s) produced a scour hole downstream a sill or a flat bottom protection, the slope of the scour hole being independent of flow velocity, partially dependent on scale and wholly dependent on grain size and gradation and sill geometry. The tractive forces of single grains and liquefaction are the mechanisms scour.

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Verfügbarkeit in meiner Bibliothek prüfen

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Dokumentinformationen

Titel:

Investigation of Local Scour in Cohesionless Sediments Using a Tunnel-Model

Beteiligte:

M. Buchko (Autor:in) / P. Kolkman (Autor:in) / K. Pilarczyk (Autor:in)

Erscheinungsdatum:

1988

Format / Umfang:

14 pages

Medientyp:

Report

Format:

Keine Angabe

Sprache:

Englisch

Schlagwörter:

Civil Engineering , Soil & Rock Mechanics , Sands , Erosion , Water tunnels , Hydraulic structures , Hydraulic models , Froude number , Mathematical models , Design , Protection , Depth , Particle size , Prototypes , Foreign technology

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