Open AccessSCOUR BEHIND CIRCULAR CYLINDERS IN DEEP WATER
Author(s) -
Jörg Imberger,
Des Alach,
John Schepis
Publication year - 1982
Publication title -
proceedings of conference on coastal engineering/proceedings of ... conference on coastal engineering
Language(s) - English
Resource type - Journals
eISSN - 2156-1028
pISSN - 0589-087X
DOI - 10.9753/icce.v18.93
Subject(s) - flume , geotechnical engineering , geology , cylinder , calcareous , shear (geology) , shear velocity , deep water , mechanics , flow (mathematics) , geometry , turbulence , petrology , oceanography , mathematics , physics , paleontology
Flume test data is presented for the depth of scour in deep water near a vertical cylinder placed in a uniform sand and a fine calcareous ocean sediment. The ratio of the depth of scour to the cylinder diameter at equilibrium is shown to depend only on the ratio of the shear velocity to the critical shear velocity at which bed motion is initiated. Protection against scour by placing collars around the cylinder is shown to be of marginal value.