English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Computational models based on the depth-averaged shallow water equations(SWE) offer an efficient choice to analyse velocity fields around hydraulicstructures. Second-order finite volume (FV2) solvers have often been used forthis purpose subject to adding an eddy viscosity term at sub-meter resolution,but have been shown to fall short of capturing small-scale field transientsemerging from wave-structure interactions. The second-order discontinuousGalerkin (DG2) alternative is significantly more resistant to the growth ofnumerical diffusion and leads to faster convergence rates. These propertiesmake the DG2 solver a promising modelling tool for detailed velocity fieldpredictions. This paper focuses on exploring this DG2 capability with referenceto an FV2 counterpart for a selection of test cases that require well-resolvedvelocity field predictions. The findings of this work lead to identifying aparticular setting for the DG2 solver that allows for obtaining more accurateand efficient depth-averaged velocity fields incorporating small-scaletransients.

Well-resolved velocity fields using discontinuous Galerkin shallow water solutions