Abstract
The effects of beach permeability on the swash hydrodynamics is at present still poorly understood. This has motivated a series of detailed free surface and subsurface flow measurements to be undertaken in a controlled large-scale laboratory environment using a Laser Induced Fluorescence (LIF) technique, pressure transducers and wetting front recordings for two immobile coarse-grained beaches. Experimental results show that air plays a significant role in the exchange between free surface and subsurface flows. A numerical model has been developed for swash on permeable beaches consisting of a I D free surface shock-capturing model, based on Shallow Water Equations, and a ID subsurface flow model. It captures the main features of swash and wetting front profiles. The combined insights from the experimental and numerical work will contribute to better understanding and modelling of swash and similar flows.
| Original language | English |
|---|---|
| Title of host publication | Coastal Engineering 2008 (in 5 volumes) |
| Subtitle of host publication | Proceedings of the 31st International Conference |
| Editors | Jane McKee Smith |
| Place of Publication | Singapore |
| Publisher | WORLD SCIENTIFIC PUBL CO PTE LTD |
| Number of pages | 13 |
| ISBN (Print) | 978-981-4277-36-5, 9814277363 |
| Publication status | Published - 22 Jul 2009 |
Keywords
- sediment transport
- equations
Cite this
Water exchange across the beach face for swash on coarse-grained beaches. / Steenhauer, Kate; Pokrajac, Dubravka; O'Donoghue, Tom; Kikkert, Gustaaf.
Coastal Engineering 2008 (in 5 volumes): Proceedings of the 31st International Conference. ed. / Jane McKee Smith. Singapore : WORLD SCIENTIFIC PUBL CO PTE LTD, 2009.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Water exchange across the beach face for swash on coarse-grained beaches
AU - Steenhauer, Kate
AU - Pokrajac, Dubravka
AU - O'Donoghue, Tom
AU - Kikkert, Gustaaf
PY - 2009/7/22
Y1 - 2009/7/22
N2 - The effects of beach permeability on the swash hydrodynamics is at present still poorly understood. This has motivated a series of detailed free surface and subsurface flow measurements to be undertaken in a controlled large-scale laboratory environment using a Laser Induced Fluorescence (LIF) technique, pressure transducers and wetting front recordings for two immobile coarse-grained beaches. Experimental results show that air plays a significant role in the exchange between free surface and subsurface flows. A numerical model has been developed for swash on permeable beaches consisting of a I D free surface shock-capturing model, based on Shallow Water Equations, and a ID subsurface flow model. It captures the main features of swash and wetting front profiles. The combined insights from the experimental and numerical work will contribute to better understanding and modelling of swash and similar flows.
AB - The effects of beach permeability on the swash hydrodynamics is at present still poorly understood. This has motivated a series of detailed free surface and subsurface flow measurements to be undertaken in a controlled large-scale laboratory environment using a Laser Induced Fluorescence (LIF) technique, pressure transducers and wetting front recordings for two immobile coarse-grained beaches. Experimental results show that air plays a significant role in the exchange between free surface and subsurface flows. A numerical model has been developed for swash on permeable beaches consisting of a I D free surface shock-capturing model, based on Shallow Water Equations, and a ID subsurface flow model. It captures the main features of swash and wetting front profiles. The combined insights from the experimental and numerical work will contribute to better understanding and modelling of swash and similar flows.
KW - sediment transport
KW - equations
M3 - Conference contribution
SN - 978-981-4277-36-5
SN - 9814277363
BT - Coastal Engineering 2008 (in 5 volumes)
A2 - McKee Smith, Jane
PB - WORLD SCIENTIFIC PUBL CO PTE LTD
CY - Singapore
ER -