Simplified Model for Oscillatory Flow-Submerged Canopy Interaction: Fid-Bau Portal

Fachinformationsdienst BAUdigital

Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik

Simplified Model for Oscillatory Flow-Submerged Canopy Interaction

Cáceres-Euse, A. / Variano, E. A. / Toro-Botero, F. M. / Gómez-Giraldo, A. / Osorio, Andres F.

A shear layer at the top of a submerged canopy was analyzed under oscillatory flow driven by free surface waves. By applying a dimensional analysis at the shear layer scale, a simple analytical model that reveals the dominant terms in Navier–Stokes equation was developed. A set of laboratory data shows good agreement with the analytical model and the assumptions applied in its derivation. The wave–seagrass interaction can be assumed as a horizontal parallel flow, given that the mean vertical velocity and the vertical advection component can be negligible compared with the mean horizontal velocity and the horizontal advection, respectively. Notable results are that the shear layer thickness ( $δ$ ) can be approximated as a function of the horizontal orbital excursion ( $A_{w}$ ) by $δ \approx 0.2 A_{w}$ . Additionally, the turbulent model parameterization as function of $A_{w}$ shows good agreement in developing the shear layer, so that the mixing process at the top of the canopy and the development of the horizontal velocity profile are modulated by the horizontal orbital excursion and wave period.

Zugriff

Zugriff prüfen

Verfügbarkeit in meiner Bibliothek prüfen

Bestellung bei Subito €

Seitennavigation

Dokumentinformationen

Ähnliche Titel

Exportieren, teilen und zitieren

Simplified Model for Oscillatory Flow-Submerged Canopy Interaction

Cáceres-Euse, A. / Variano, E. A. / Toro-Botero, F. M. / Gómez-Giraldo, A. / Osorio, Andres F.

A shear layer at the top of a submerged canopy was analyzed under oscillatory flow driven by free surface waves. By applying a dimensional analysis at the shear layer scale, a simple analytical model that reveals the dominant terms in Navier–Stokes equation was developed. A set of laboratory data shows good agreement with the analytical model and the assumptions applied in its derivation. The wave–seagrass interaction can be assumed as a horizontal parallel flow, given that the mean vertical velocity and the vertical advection component can be negligible compared with the mean horizontal velocity and the horizontal advection, respectively. Notable results are that the shear layer thickness ( $δ$ ) can be approximated as a function of the horizontal orbital excursion ( $A_{w}$ ) by $δ \approx 0.2 A_{w}$ . Additionally, the turbulent model parameterization as function of $A_{w}$ shows good agreement in developing the shear layer, so that the mixing process at the top of the canopy and the development of the horizontal velocity profile are modulated by the horizontal orbital excursion and wave period.

Simplified Model for Oscillatory Flow-Submerged Canopy Interaction

Cáceres-Euse, A. / Variano, E. A. / Toro-Botero, F. M. / Gómez-Giraldo, A. / Osorio, Andres F.

A shear layer at the top of a submerged canopy was analyzed under oscillatory flow driven by free surface waves. By applying a dimensional analysis at the shear layer scale, a simple analytical model that reveals the dominant terms in Navier–Stokes equation was developed. A set of laboratory data shows good agreement with the analytical model and the assumptions applied in its derivation. The wave–seagrass interaction can be assumed as a horizontal parallel flow, given that the mean vertical velocity and the vertical advection component can be negligible compared with the mean horizontal velocity and the horizontal advection, respectively. Notable results are that the shear layer thickness ( $δ$ ) can be approximated as a function of the horizontal orbital excursion ( $A_{w}$ ) by $δ \approx 0.2 A_{w}$ . Additionally, the turbulent model parameterization as function of $A_{w}$ shows good agreement in developing the shear layer, so that the mixing process at the top of the canopy and the development of the horizontal velocity profile are modulated by the horizontal orbital excursion and wave period.

Zugriff

Zugriff prüfen

Verfügbarkeit in meiner Bibliothek prüfen

Bestellung bei Subito €

Seitennavigation

Dokumentinformationen

Ähnliche Titel

Exportieren, teilen und zitieren

Dokumentinformationen

Titel:

Simplified Model for Oscillatory Flow-Submerged Canopy Interaction

Beteiligte:

Cáceres-Euse, A. (Autor:in) / Variano, E. A. (Autor:in) / Toro-Botero, F. M. (Autor:in) / Gómez-Giraldo, A. (Autor:in) / Osorio, Andres F. (Autor:in)

Erschienen in:

Journal of Hydraulic Engineering ; 146

Erscheinungsdatum:

17.08.2020

ISSN:

0733-9429 , 1943-7900

DOI:

https://doi.org/10.1061/(ASCE)HY.1943-7900.0001807

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Unbekannt

Ähnliche Titel

Analytical solution for the Kelvin–Helmholtz instability under a submerged canopy-oscillatory flow

Cáceres-Euse, Alejandro / Orfila, Alejandro / Abdolahpour, Maryam et al. | Taylor & Francis Verlag | 2022

A coupled model of submerged vegetation under oscillatory flow using Navier–Stokes equations

Maza, Maria | Online Contents | 2013

A coupled model of submerged vegetation under oscillatory flow using Navier-Stokes equations

Maza, M. / Lara, J. L. / Losada, I. J. | British Library Online Contents | 2013

Linear and nonlinear frequency-domain modelling of oscillatory flow over submerged canopies

Neshamar, Otto E. / Jacobsen, Niels G. / van der A, Dominic A. et al. | Taylor & Francis Verlag | 2023

Freier Zugriff

CHARACTERISTICS OF OSCILLATORY FLOWS AROUND A SUBMERGED ASYMMETRICAL STRUCTURE

Oshikawa, H. / Komatsu, T. / International Association of Hydraulic Engineering and Research et al. | British Library Conference Proceedings | 2007