ATTRIBUTE | VALUE |
type | K |
database id | 8787 |
title | An investigation of the velocity field over rippled sand bottom |
authors | Stachurska B.1, Staroszczyk R.1 |
affiliations | |
pages | 122 — 131 |
DOI | 10.15142/T3ZP4F |
full text link | https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1037&context=ewhs |
keywords | Sediment movement, sand ripples, velocity field, PIV method |
abstracts | Ripples 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] |
language | en |
PART OF |
type | Z |
database id | 8785 |
title | Full Proceedings: IJREWHS 2016 |
year | 2016 |
conference | 6th International Junior Researcher and Engineer Workshop on Hydraulic Structures (IJREWHS 2016), 30-31 May 2016, Lübeck [id=539] |
publisher | Utah State University |
place | Logan/USA |
full text link | http://digitalcommons.usu.edu/ewhs/2016/FullProceedings/1 |