Field Observations of Wave-Current Interaction at the Sea Bed: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Field Observations of Wave-Current Interaction at the Sea Bed

Soulsby, R. L. / Humphery, J. D.

Abstract Field measurements are presented of the mean, turbulent, and wave-induced velocities near the sea bed in combined wave-plus-current flow, with which to test theories of wave-current interaction. A technique of splitting the variance within the velocity spectrum was developed to separate wave orbital velocities from turbulent fluctuations, which were often as large as the orbital velocities. The wave boundary layer was much thinner than the lowest measuring height (10cm) and acted as a source of turbulence to the current boundary layer, analogous to an increased apparent bed roughness. This caused both the turbulent kinetic energy and the mean bed shear stress to increase strongly with the wave:current ratio. The results have implications for sediment transport, tidal dynamics, wave dissipation, and forces on pipelines.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Field Observations of Wave-Current Interaction at the Sea Bed

Soulsby, R. L. / Humphery, J. D.

Abstract Field measurements are presented of the mean, turbulent, and wave-induced velocities near the sea bed in combined wave-plus-current flow, with which to test theories of wave-current interaction. A technique of splitting the variance within the velocity spectrum was developed to separate wave orbital velocities from turbulent fluctuations, which were often as large as the orbital velocities. The wave boundary layer was much thinner than the lowest measuring height (10cm) and acted as a source of turbulence to the current boundary layer, analogous to an increased apparent bed roughness. This caused both the turbulent kinetic energy and the mean bed shear stress to increase strongly with the wave:current ratio. The results have implications for sediment transport, tidal dynamics, wave dissipation, and forces on pipelines.

Field Observations of Wave-Current Interaction at the Sea Bed

Soulsby, R. L. / Humphery, J. D.

Abstract Field measurements are presented of the mean, turbulent, and wave-induced velocities near the sea bed in combined wave-plus-current flow, with which to test theories of wave-current interaction. A technique of splitting the variance within the velocity spectrum was developed to separate wave orbital velocities from turbulent fluctuations, which were often as large as the orbital velocities. The wave boundary layer was much thinner than the lowest measuring height (10cm) and acted as a source of turbulence to the current boundary layer, analogous to an increased apparent bed roughness. This caused both the turbulent kinetic energy and the mean bed shear stress to increase strongly with the wave:current ratio. The results have implications for sediment transport, tidal dynamics, wave dissipation, and forces on pipelines.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Field Observations of Wave-Current Interaction at the Sea Bed

Contributors:

Soulsby, R. L. (author) / Humphery, J. D. (author)

Published in:

Water Wave Kinematics ; 413-428

NATO ASI Series ; 178

Publication date:

1990-01-01

Size:

16 pages

ISBN:

978-94-010-6725-6 , 978-94-009-0531-3

ISSN:

DOI:

https://doi.org/10.1007/978-94-009-0531-3_25

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Turbulent Kinetic Energy , Sediment Transport , Current Ratio , Turbulent Fluctuation , Orbital Velocity Engineering , Offshore Engineering , Mechanics

Similar titles

Some observations of wave-current interaction

Wolf, J. / Prandle, D. | British Library Online Contents | 1999

Some observations of wave-current interaction

Wolf, J. | Online Contents | 1999

Nearshore Wave and Current Predictions Compared with Field Observations

Morris, B. / Thornton, E. B. / Reniers, A. | British Library Conference Proceedings | 2001

Wave-Current Interaction in Inlets

Briggs, M. J. / Demirbilek, Z. / Green, D. R. et al. | British Library Conference Proceedings | 1997

One-Dimensional Wave-Current Interaction

J. M. Smith | NTIS | 1997