Instytut Budownictwa Wodnego
Polskiej Akademii Nauk

Essay #8785 details

ATTRIBUTEVALUE
typeZ
database id8785
titleFull Proceedings: IJREWHS 2016
authors
year2016
conference6th International Junior Researcher and Engineer Workshop on Hydraulic Structures (IJREWHS 2016), 30-31 May 2016, Lübeck [id=539]
publisherUtah State University
placeLogan/USA
full text linkhttp://digitalcommons.usu.edu/ewhs/2016/FullProceedings/1
attributes[published] [reviewed] [scientific] [international reach]
languageen

Parts

ATTRIBUTEVALUE
typeK
database id8787
titleAn investigation of the velocity field over rippled sand bottom
authorsStachurska B., Staroszczyk R.
pages122 — 131
DOI10.15142/T3ZP4F
full text linkhttps://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1037&context=ewhs
keywordsSediment movement, sand ripples, velocity field, PIV method
affiliations
  1. Polish Academy of Sciences
abstractsRipples at a sandy seabed are the consequence of the oscillatory movement of water particles. The ripples are the reason for the increase of the bed roughness of the bottom becoming an important factor in the sediment transport process. Better understanding of the processes taking place in the near-bottom flow field will allow an accurate description of the mechanism of the sediment transport. An experimental investigation of the velocity field over rippled sand bottom has been carried out in a wave flume of the Institute of Hydro-Engineering of the Polish Academy of Sciences in Gdansk. Measurements were performed using the technique of Particle Image Velocimetry. The velocity fields of the sandy sediment were measured in the region immediately over the flume bottom coated by sand ripples. The results obtained describe the instantaneous velocity fields of sediment particles along vertical and horizontal profiles at different spatial locations and at different phases of the oscillatory flow induced by free-surface water wave propagation. It has been demonstrated that the Particle Image Velocimetry technique of measuring the movement of sediment particles at the bottom proximity has proven as a reliable and sufficiently accurate method. The experimental data obtained will enable the validation of a numerical model which is currently developed.
attributes[reviewed] [scientific]
languageen
ATTRIBUTEVALUE
typeK
database id8786
titleWater wave measurements at Bellsund in the western Spitsbergen
authorsMajewski D., Sulisz W., Paprota M., Szmytkiewicz M.
pages79 — 85
DOI10.15142/T3GP43
full text linkhttps://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1028&context=ewhs
keywordsField measurements, Arctic, water waves, database
affiliations
  1. Polish Academy of Sciences
abstractsThe Arctic region has experienced rapid changes in the last few decades. The Arctic coasts in times of progressing global warming are exceptionally vulnerable to erosion. Arctic sea-ice extent is decreasing dramatically leaving coasts exposed to destructive action of waves. The lack of sea ice causes a dramatic increase of wave energy reaching coastline. In order to provide insight into coastal changes in Arctic areas, field measurements were carried out in the area of Calypsobyen, Bellsund, west Spitsbergen. Data of free- surface elevation, wave orbital velocities, water currents and bathymetry were collected during expedition in the western Spitsbergen. In the frame of this study a detailed analysis of wave field were performed. The collected database constitute unique and valuable source of information on Arctic wave climate.
attributes[reviewed] [scientific]
languageen

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