High-resolution flow dynamics using a subgrid-based hydrodynamic model

doi:10.1016/j.envsoft.2026.107182

High-resolution flow dynamics using a subgrid-based hydrodynamic model

2026-10-05

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DOI：10.1016/j.envsoft.2026.107182

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Abstract

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• Physics-based method to construct high-res flow results from coarse grid output. • Method exploits subgrid-based hydrodynamic models using quadtree-stuctured grids. • Minimal overhead is added with 1%–6% runtime relative to full high-resolution models. • Improves small scale flooding, drying, and flow velocity representation. • Applicable in real world estuarine settings for enhanced model insight.

Keywords:

Subgrid modelling

Hydrodynamics

Quadtree grid

Estuarine modelling

Elbe estuary

High-resolution flow dynamics using a subgrid-based hydrodynamic model

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