ROLE OF VERTICAL PRESSURE GRADIENT IN WAVE BOUNDARY LAYERS

Karsten Lindegård Jensen; B. Mutlu Sumer; Giovanna Vittori; Paolo Blondeaux

doi:10.9753/icce.v34.waves.47

No. 34 (2014), Waves

No. 34 (2014)

ROLE OF VERTICAL PRESSURE GRADIENT IN WAVE BOUNDARY LAYERS

Waves

https://doi.org/10.9753/icce.v34.waves.47

Published 2014-10-30

Karsten Lindegård Jensen⁺⁻
B. Mutlu Sumer⁺⁻
Giovanna Vittori⁺⁻
Paolo Blondeaux⁺⁻

Karsten Lindegård Jensen

Technical University of Denmark, Department of Mechanical Engineering, Section for Fluid Mechanics, Coastal and Maritime Engineering, 2800 Kgs. Lyngby

B. Mutlu Sumer

Technical University of Denmark, Department of Mechanical Engineering, Section for Fluid Mechanics, Coastal and Maritime Engineering, 2800 Kgs. Lyngby

Giovanna Vittori

University of Genoa, Department of Civil, Chemical and Environmental Engineering, Via Montallegro 1, 16146 Genoa

Paolo Blondeaux

University of Genoa, Department of Civil, Chemical and Environmental Engineering, Via Montallegro 1, 16146 Genoa

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Keywords

wave boundary layers
turbulence
vertical pressure gradient
DNS
transition to turbulence

How to Cite

Jensen, K. L., Sumer, B. M., Vittori, G., & Blondeaux, P. (2014). ROLE OF VERTICAL PRESSURE GRADIENT IN WAVE BOUNDARY LAYERS. Coastal Engineering Proceedings, 1(34), waves.47. https://doi.org/10.9753/icce.v34.waves.47

Abstract

The pressure field in an oscillatory boundary layer is obtained by means of direct numerical simulations (DNS). The vertical pressure gradient is treated as any other turbulence quantity and its statistical properties are calculated from the DNS data. Moreover, a criterion involving the vertical pressure gradient is used to detect spots. The large fluctuations of the vertical pressure gradient, which take place in the turbulent flow, have significant implications for sediment transport.

https://doi.org/10.9753/icce.v34.waves.47

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References

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ROLE OF VERTICAL PRESSURE GRADIENT IN WAVE BOUNDARY LAYERS

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